0,3

If A277558 is a permutation, this is the full inverse of it.

After 10^11 terms of A277558, the smallest number which has not appeared is 609790506. The largest number in the first 600 million terms of this sequence is a(597249348) = 97840303230.

Benjamin Chaffin, Table of n, a(n) for n = 0..10000

A277558(16) = 8, so a(8) = 16.

Cf. A277558, A005132

Sequence in context: A072349 A016518 A118202 * A089331 A125856 A057110

Adjacent sequences: A277575 A277576 A277577 * A277579 A277580 A277581

nonn

Benjamin Chaffin, Oct 20 2016

approved