0,1

a(0)=A097398(1,2)=43 corresponds to Goebel's sequence A003504.

First composite term is a(101)=93.

Max Alekseyev, Table of n, a(n) for n = 0..10000

M. Alekseyev, Simple recurrence that fails to be integer for the first time at the 44th term, Mathoverflow, 2017.

Cf. A003504, A097398.

Sequence in context: A051318 A036202 A212316 * A107814 A093762 A156677

Adjacent sequences: A292993 A292994 A292995 * A292997 A292998 A292999

nonn

Max Alekseyev, Sep 27 2017

approved