%I #9 Oct 08 2017 23:36:03
%S 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,
%T 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
%N First differences of A100290.
%H Robert Israel, <a href="/A292777/b292777.txt">Table of n, a(n) for n = 1..10000</a>
%H Rémy Sigrist, <a href="/A100290/a100290.png">Scatterplot of the first 10000 terms of the first difference of A100290</a>
%p filter:= n -> evalb(n mod (2^numboccur(1, convert(n, base, 2))-1) = 0):
%p A100290:= select(filter, [$1..1000]):
%p A100290[2..-1]-A100290[1..-2]; # _Robert Israel_, Oct 08 2017
%Y Cf. A100290.
%K nonn
%O 1,4
%A _N. J. A. Sloane_, Oct 08 2017