A118021 Numbers n such that (1+n)/n does not converge to an integer under the approximate cubing map x -> x*ceiling(x^2).
2, 4, 8, 16, 20, 40, 64, 72, 80, 100, 120, 128, 136, 240, 300, 376, 404, 432
Offset: 1
Keywords
Formula
A118020(n)=-1.