5 languages (5AB1E05AB1E, Actually, CJam, Jelly, MATL), 7 bytes
UD>li)+
Try it online!:
- 05AB1E: sequence A000027 (positive integers: a(n) = n; 1-based)
- Actually: sequence A023443 (non-negative integers including 1: a(n) = n−1; 0-based)
- Cjam: sequence A020725 (positive integers excluding 1: a(n) = n+1; 1-based)
- Jelly: sequence A005843 (non-negative even numbers: a(n) = 2*n; 0-based)
- MATL: sequence A000290 (squares: a(n) = n2; 1-based). Exits with an error after producing the output.