1,2

a(n) = the largest numbers k such that A007955 (k) = n, or 0 if there is no such k.

Table of n, a(n) for n=1..30.

Sequence in context: A047814 A101991 A296065 * A175880 A071376 A064502

Adjacent sequences: A174897 A174898 A174899 * A174901 A174902 A174903

nonn

Jaroslav Krizek, Apr 01 2010

approved