cp's OEIS Frontend

A212230 Number of 0..2 arrays of length n+11 with sum no more than 12 in any length 12 subsequence (=50% duty cycle).

%I A212230 #6 Jun 02 2025 07:55:43
%S A212230 302615,808403,2204646,6062948,16740414,46305966,128148456,354470546,
%T A212230 979272751,2700150083,7425872754,20355794336,55576133157,151888056136,
%U A212230 415782103202,1139624300299,3126418458642,8581964181953,23565242287322
%N A212230 Number of 0..2 arrays of length n+11 with sum no more than 12 in any length 12 subsequence (=50% duty cycle).
%C A212230 Column 6 of A212232
%H A212230 R. H. Hardin, <a href="/A212230/b212230.txt">Table of n, a(n) for n = 1..122</a>
%e A212230 Some solutions for n=3
%e A212230 ..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
%e A212230 ..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
%e A212230 ..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
%e A212230 ..1....1....1....2....0....1....0....0....0....0....0....1....1....0....0....1
%e A212230 ..1....1....1....0....0....0....2....1....2....1....0....2....0....1....1....0
%e A212230 ..0....2....1....0....1....1....2....1....1....0....2....1....0....1....0....1
%e A212230 ..2....0....2....2....0....1....0....0....1....1....0....0....1....2....2....1
%e A212230 ..2....1....1....1....2....1....1....2....0....0....1....1....1....2....1....2
%e A212230 ..1....2....0....2....2....2....0....2....0....1....2....0....0....0....1....0
%e A212230 ..0....0....0....1....1....0....0....0....0....2....0....1....0....2....1....1
%e A212230 ..1....1....2....2....1....0....1....1....1....2....1....0....0....1....0....2
%e A212230 ..1....1....1....0....2....1....0....2....2....1....0....0....2....1....0....2
%e A212230 ..1....2....2....0....0....2....1....0....0....0....0....2....1....0....1....1
%e A212230 ..0....1....0....2....1....2....0....1....0....1....0....2....0....1....2....1
%K A212230 nonn
%O A212230 1,1
%A A212230 _R. H. Hardin_ May 06 2012