1,2

Table of n, a(n) for n=1..60.

A031942 = { n | A043278(n)=1 } = A043090 \ {0}. - M. F. Hasler, Jul 23 2013

Cf. A000975 (base-2 analog), A031941 or A043089 (base-3 analog), A031943 or A043091 (base-5 analog), A043092, ..., A043096 (base-6 through base-10 analog).

Sequence in context: A188042 A236842 A236860 * A043090 A317044 A267302

Adjacent sequences: A031939 A031940 A031941 * A031943 A031944 A031945

nonn,base

Clark Kimberling

Edited by Charles R Greathouse IV, Aug 02 2010

approved