1,3

See A318256 for some background information.

Table of n, a(n) for n=1..10.

Numbers k such that A144845(k) / A007947(k+1) = 1.

Cf. A007947, A144845, A318256.

Sequence in context: A163778 A328643 A160358 * A120806 A020946 A304525

Adjacent sequences: A319081 A319082 A319083 * A319085 A319086 A319087

nonn,more

Peter Luschny, Sep 12 2018

approved