A292777 First differences of A100290.

1, 1, 1, 2, 1, 1, 1, 3, 2, 1, 1, 2, 3, 3, 4, 2, 1, 1, 1, 2, 1, 6, 3, 3, 1, 7, 4, 2, 1, 1, 2, 4, 2, 3, 9, 6, 3, 3, 2, 7, 7, 8, 4, 2, 1, 1, 1, 3, 1, 2, 5, 4, 6, 5, 6, 4, 3, 12, 6, 3, 3, 3, 1

Offset: 1

Author

N. J. A. Sloane, Oct 08 2017

Keywords

• nonn

Links

• Robert Israel, Table of n, a(n) for n = 1..10000
• Rémy Sigrist, Scatterplot of the first 10000 terms of the first difference of A100290

Crossrefs

Cf. A100290.

Programs

Maple

filter:= n -> evalb(n mod (2^numboccur(1, convert(n, base, 2))-1) = 0):
A100290:= select(filter, [$1..1000]):
A100290[2..-1]-A100290[1..-2]; # Robert Israel, Oct 08 2017