1,4

0<= a(n) <=n for any n.

Table of n, a(n) for n=1..80.

Robert G. Wilson v, Illustration of initial terms

For any k, a(A062880(k)) = 0; a(A000695(k))=A000695(k)

Sequence in context: A258197 A255698 A290558 * A291845 A322193 A174984

Adjacent sequences: A071989 A071990 A071991 * A071993 A071994 A071995

easy,nonn

Benoit Cloitre, Jun 17 2002

approved