1,3

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Select[Range[0, 100], DigitCount[#, 12, 9] == DigitCount[#, 12, 11] &] (* Vincenzo Librandi, Oct 21 2012 *)

Sequence in context: A130676 A039227 A257727 * A039164 A263977 A335040

Adjacent sequences: A039270 A039271 A039272 * A039274 A039275 A039276

nonn,base,easy

Olivier Gérard

An incorrect g.f. was deleted by N. J. A. Sloane, Sep 13 2009

approved