Voozh

A145057

First differences of A031443.

2, 7, 1, 2, 23, 2, 1, 3, 1, 2, 5, 1, 2, 4, 79, 4, 2, 1, 5, 2, 1, 3, 1, 2, 7, 2, 1, 3, 1, 2, 5, 1, 2, 4, 11, 2, 1, 3, 1, 2, 5, 1, 2, 4, 9, 1, 2, 4, 8, 287, 8, 4, 2, 1, 9, 4, 2, 1, 5, 2, 1, 3, 1, 2, 11, 4, 2, 1, 5, 2, 1, 3, 1, 2, 7, 2, 1, 3, 1, 2, 5, 1, 2, 4, 15, 4, 2, 1, 5, 2, 1, 3, 1, 2, 7, 2, 1, 3, 1, 2, 5, 1

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

a(n) equals the differences between k where A145037(k) equals zero. - Reikku Kulon, Oct 02 2008

LINKS

David A. Corneth, Table of n, a(n) for n = 1..10000

EXAMPLE

a(3) = A031443(3) - A031443(3-1) = 10 - 9 = 1. - David A. Corneth, Apr 26 2022

MATHEMATICA

Differences[Select[Range[0, 1000], SameQ@@DigitCount[#, 2] &]] (* Paolo Xausa, Nov 16 2024 *)

CROSSREFS