# Tag Info

### Print numbers from 1 to 10

C, 36 bytes main(i){while(printf("%d ",i++)<3);} This works because the loop terminates after the first 2 digit number.

### The first n numbers without consecutive equal binary digits

Python 2, 36 bytes lambda n:[2**i*2/3for i in range(n)] Try it online! Explanation: The binary representation of $\frac{2}3$ is ...

### Fibonacci-orial

Mathematica, 10 bytes Fibonorial Another Mathematica built-in soundly beaten by a golfing language without the built-in.

Jelly, 10 bytes 9s3’Ẓæ*³FṀ Try it online! 1-indexed. Computes the largest element of: \begin{bmatrix}0&0&1 \\ 1&0&1 \\ 0&1&0\end{...

### Count up folks!

MarioLANG, 29 bytes ; ) < +====" >:(-[! =====# Try it online! I know my code is sadly super-sad or angry: >:( Happy MarioLANG, 46 bytes ...

### Print numbers from 1 to 10

HTML, 44 bytes <ol><li><li><li><li><li><li><li><li><li><li> This is longer than ...

### Absolute Sums of Sidi Polynomial Coefficients

Python 2, 43 bytes f=lambda n,k=1:k/n or n*f(n,k+1)+k*f(n-1,k) Try it online! A different approach Ever since I posted this challenge, I tried to come up with a ...

### Fibonacci + Fizz Buzz = Fibo Nacci!

Python 2, 62 bytes a=b=1;exec"print~a%2*'Fibo'+~a%3/2*'Nacci'or a;a,b=b,a+b;"*100 Not much different from the standard FizzBuzz, really.
Accepted

### Is it a Proth number?

Jelly, 5 bytes ’&C²> Try it online! or verify all test cases. Let $\newcommand{\&}[]{\text{ & }}j$ be a strictly positive integer. $j + 1$ ...

### Is it a Proth number?

Python, 22 bytes lambda N:N-1&1-N>N**.5 This is a port of my Jelly answer. Test it on Ideone. How it works Let $\newcommand{\&}[]{\text{ & }}j$ ...

### Scroll Word's font size selector

Word VBA, 199 147 126 116 102 100 87 85 Bytes Why emulate when you can do?! Declared function in the ThisDocument module that takes input ...

### Fibonacci reversed!

Mathematica, 25 bytes InverseFunction@Fibonacci Function. Pretty self-explanatory if you ask me.

### One OEIS after another

22. FiM++, 982 bytes, A000024 Note: if you are reading this, you might want to sort by "oldest". ...

### Output the missing integer

Python 2, 18 16 bytes +beauty thanks to @Sarge Borsch 99066**2.strip Try it online! 99066**2 is just a shorter way to ...
Accepted

### Prime counting function

05AB1E, 3 bytes !fg This assumes that factorization built-ins are allowed. Try it online! How it works ...
Accepted

### Print a bunch of uninteresting numbers!

05AB1E, 3 bytes Ð«* Explained Ð # triplicate input « # conactenate * # multiply Try it online

### Polyglot the OEIS!

26 languages: C, C++, Cubically, rk, what, Bash, Morse, Ook!, str, Charcoal, Commercial, S.I.L.O.S, memescript, Forked, TRANSCRIPT, Braingolf, Fission, Arcyou, Beam, Beatnik, Cood, COW, Emoji, ><>, ...
Accepted

### Can you outgolf me? (Cops section)

Seed, 5861 bytes, score = 5012 / 5861 = 0.85 The sequence is primes (A000040) with offset 1. a(1) = 2, a(2) = 3, a(3) = 5 etc. ...

### Display OEIS sequences

Python 2, 875 sequences print', '.join('%020d'%(10**20/(input()-21004))) Works for 875 of the sequences 21016 (decimal digits of 1/12) through 21999 (decimal ...
Accepted

### Am I a Fibonacci Number?

Neim, 2 bytes f𝕚 Explanation: f Push an infinite fibonacci list 𝕚 Is the input in that list? Works the same ...

### Surrounded Countries

Pyth, 7 bytes n{Q_{_Q Run the code on test cases. ...

Jelly,  10 9  8 bytes ŻṚm2Jc\$S A monadic Link accepting n (0-indexed) which yields P(n). ...

### Oddly Even, Positively Negative

Python 2, 23 bytes lambda n:~n/2+n%2*(n|2) Odd inputs give roughly n/2, even ones roughly ...
Python 2, 56 bytes for n in range(9999): if eval('<'.join(n))**n:print n Try it online! Converts each number like 124 ...