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 A184203 Number of (n+1)X6 binary arrays with no 2X2 subblock containing fewer than two 1s 1
 1049, 29593, 721939, 18588589, 471487297, 12021784217, 306055720601, 7795714368919, 198537902186962, 5056537169718019, 128782273379145931, 3279904522485716031, 83534449921348607076, 2127503372277866225041 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A184207 LINKS R. H. Hardin, Table of n, a(n) for n = 1..200 FORMULA Empirical: a(n)=26*a(n-1)+103*a(n-2)-3175*a(n-3)+843*a(n-4)+124668*a(n-5)-241004*a(n-6)-1741528*a(n-7)+4512428*a(n-8)+11666399*a(n-9)-36429185*a(n-10)-41916935*a(n-11)+161955426*a(n-12)+79119202*a(n-13)-435611222*a(n-14)-51541960*a(n-15)+738522868*a(n-16)-83869087*a(n-17)-800207178*a(n-18)+216307031*a(n-19)+552396475*a(n-20)-212199576*a(n-21)-239220431*a(n-22)+114209818*a(n-23)+63085385*a(n-24)-36259721*a(n-25)-9488703*a(n-26)+6873528*a(n-27)+671231*a(n-28)-762566*a(n-29)+22*a(n-30)+47026*a(n-31)-2787*a(n-32)-1453*a(n-33)+139*a(n-34)+17*a(n-35)-2*a(n-36) EXAMPLE Some solutions for 3X6 ..1..0..1..0..1..1....1..1..0..1..0..1....1..1..0..1..1..0....1..0..1..1..1..1 ..1..0..1..1..0..1....1..0..1..1..1..0....1..0..1..0..1..0....1..1..0..0..0..1 ..0..1..1..1..1..0....0..1..0..0..1..1....1..1..0..1..0..1....1..0..1..1..1..1 CROSSREFS Sequence in context: A056092 A164771 A030083 * A015064 A090057 A204753 Adjacent sequences:  A184200 A184201 A184202 * A184204 A184205 A184206 KEYWORD nonn AUTHOR R. H. Hardin Jan 10 2011 STATUS approved

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