This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A213911 #16 Jan 16 2025 02:35:54 %S A213911 0,0,1,1,1,1,1,2,1,1,2,2,2,1,1,2,2,2,2,2,3,1,1,2,2,2,2,2,3,2,2,3,3,3, %T A213911 1,1,2,2,2,2,2,3,2,2,3,3,3,2,2,3,3,3,3,3,4,1,1,2,2,2,2,2,3,2,2,3,3,3, %U A213911 2,2,3,3,3,3,3,4,2,2,3,3,3,3,3,4,3,3,4 %N A213911 Number of runs of consecutive zeros in the Zeckendorf (binary) representation of n. %H A213911 Reinhard Zumkeller, <a href="/A213911/b213911.txt">Table of n, a(n) for n = 0..10000</a> %F A213911 a(n) = A104324(n) - A007895(n). %F A213911 a(n) = A007895(n) - A003849(n). - _Alexander Staunton_, Jan 15 2025 %o A213911 (Haskell) %o A213911 import Data.List (group) %o A213911 a213911 = length . filter ((== 0) . head) . group . a213676_row %Y A213911 Cf. A003849, A007895, A104324, A189920, A213676, A014417. %K A213911 nonn %O A213911 0,8 %A A213911 _Reinhard Zumkeller_, Mar 10 2013 %E A213911 a(0)=0 added by _N. J. A. Sloane_, Jun 30 2017