0,2

a(n) = 0 for those n which do not occur as the values of A075173. All positive natural numbers occur here once.

Table of n, a(n) for n=0..92.

a(A075173(n)) = n for all n >= 1. Differs from A075176 for first time at a(18) = 0, while A075176(18) = 9.

Sequence in context: A141186 A078682 A331205 * A075176 A134972 A078890

Adjacent sequences: A075171 A075172 A075173 * A075175 A075176 A075177

nonn

Antti Karttunen, Sep 13 2002

approved