0,5

The usual convention in the OEIS is to omit the zero terms when every second term is zero. An exception was made in this case in order to preserve the parallels with A228085 and A230632. See also A230663.

a(n) is the number of times n occurs in A230641.

Donovan Johnson, Table of n, a(n) for n = 0..10000

Index entries for Colombian or self numbers and related sequences

Cf. A230632, A228085, A230643, A230641.

Related base-3 sequences: A053735, A134451, A230641, A230642, A230643, A230853, A230854, A230855, A230856, A230639, A230640, A010063 (trajectory of 1)

Sequence in context: A091394 A029881 A070090 * A053473 A322983 A208459

Adjacent sequences: A230639 A230640 A230641 * A230643 A230644 A230645

nonn,base

N. J. A. Sloane, Oct 31 2013

approved