1,1

The only missing numbers are 1,2,4,6.

Lars Blomberg, Table of n, a(n) for n = 1..3000

Cf. A316841, A316842, A316851.

a(n) = A316846(n)+A316847(n)+A316848(n).

Sequence in context: A254935 A104199 A103470 * A307120 A261010 A064002

Adjacent sequences: A316849 A316850 A316851 * A316853 A316854 A316855

nonn

N. J. A. Sloane, Jul 23 2018

Terms a(54) and beyond from Lars Blomberg, Jul 27 2018

approved