cp's OEIS Frontend

A213462 Number of 0..3 arrays of length n+11 with sum less than 18 in any length 12 subsequence (=less than 50% duty cycle).

%I A213462 #9 Jun 02 2025 08:01:34
%S A213462 7536790,25829770,91147915,325333429,1167362677,4198162231,
%T A213462 15103463125,54284048195,194700970891,696196564935,2479358418705,
%U A213462 8785103222513,30936275166758,109148631741555,386157614218688,1369098248146214
%N A213462 Number of 0..3 arrays of length n+11 with sum less than 18 in any length 12 subsequence (=less than 50% duty cycle).
%C A213462 Column 6 of A213464
%H A213462 R. H. Hardin, <a href="/A213462/b213462.txt">Table of n, a(n) for n = 1..36</a>
%e A213462 Some solutions for n=3
%e A213462 ..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
%e A213462 ..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
%e A213462 ..0....0....2....0....2....2....0....0....0....2....0....2....0....0....0....2
%e A213462 ..2....0....2....0....0....2....2....2....0....0....2....0....0....2....0....0
%e A213462 ..0....0....0....2....2....0....0....0....2....0....0....0....2....0....2....0
%e A213462 ..2....0....0....2....2....0....0....0....2....2....0....0....2....2....2....2
%e A213462 ..0....2....0....2....2....0....0....0....0....0....0....0....2....0....2....0
%e A213462 ..0....0....0....2....0....0....0....0....0....0....0....2....0....0....2....0
%e A213462 ..0....2....2....0....0....0....2....0....0....0....2....2....2....0....2....0
%e A213462 ..3....2....1....0....0....3....1....2....2....0....1....1....0....3....3....2
%e A213462 ..1....1....1....2....0....3....1....3....0....3....3....3....0....3....0....3
%e A213462 ..0....3....2....3....3....0....3....2....0....2....0....3....1....1....2....2
%e A213462 ..1....1....0....1....0....3....2....0....3....0....1....3....0....2....1....3
%e A213462 ..0....0....3....0....0....3....3....3....3....1....3....1....3....0....1....1
%K A213462 nonn
%O A213462 1,1
%A A213462 _R. H. Hardin_ Jun 12 2012