#Python 3, 81
Nothing too exciting, join the ranges and then convert to ints and add them.
lambda x:int(''.join(map(str,range(1,x+1))))+int(''.join(map(str,range(x,0,-1))))
#Python 3, 81
Nothing too exciting, join the ranges and then convert to ints and add them.
lambda x:int(''.join(map(str,range(1,x+1))))+int(''.join(map(str,range(x,0,-1))))