cp's OEIS Frontend

A212400 Number of binary arrays of length n+11 with no more than 6 ones in any length 12 subsequence (=50% duty cycle).

%I A212400 #6 Jun 02 2025 07:56:52
%S A212400 2510,4558,8402,15586,29002,54042,100736,187696,349360,649232,1203940,
%T A212400 2226644,4104676,7573112,13992148,25879040,47898464,88693997,
%U A212400 164277882,304304060,563672655,1043992249,1933271058,3579337110,6625751995
%N A212400 Number of binary arrays of length n+11 with no more than 6 ones in any length 12 subsequence (=50% duty cycle).
%C A212400 Column 6 of A212402
%H A212400 R. H. Hardin, <a href="/A212400/b212400.txt">Table of n, a(n) for n = 1..210</a>
%e A212400 Some solutions for n=3
%e A212400 ..0....1....1....1....1....1....0....0....0....1....0....1....0....0....1....1
%e A212400 ..0....1....1....1....1....1....0....1....1....0....0....1....0....0....1....1
%e A212400 ..1....0....0....0....0....0....1....0....0....0....1....0....1....0....0....0
%e A212400 ..1....0....0....0....0....1....1....0....0....1....0....0....0....0....1....0
%e A212400 ..0....1....0....0....1....0....1....0....0....0....0....1....1....1....1....0
%e A212400 ..0....0....1....1....0....1....0....1....0....1....1....0....0....0....0....1
%e A212400 ..1....0....0....0....0....0....1....1....0....0....0....0....0....0....1....1
%e A212400 ..1....0....0....0....0....1....0....1....1....1....1....1....0....1....1....1
%e A212400 ..0....0....0....0....0....0....0....0....0....1....0....0....0....0....0....0
%e A212400 ..0....0....1....0....0....1....0....0....1....0....0....0....0....1....0....1
%e A212400 ..0....1....1....0....0....0....0....1....0....1....1....1....0....1....0....0
%e A212400 ..0....1....0....0....1....0....1....0....1....0....0....1....0....0....0....0
%e A212400 ..0....1....1....0....1....0....0....1....1....0....0....0....1....1....0....1
%e A212400 ..1....0....0....1....1....0....0....0....0....1....1....1....1....0....1....0
%K A212400 nonn
%O A212400 1,1
%A A212400 _R. H. Hardin_ May 14 2012