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 A262795 T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each row divisible by 5 and column not divisible by 5, read as a binary number with top and left being the most significant bits. 15
 0, 36, 0, 76, 144, 0, 344, 528, 625, 0, 2178, 4704, 4898, 2601, 0, 15556, 56880, 81954, 38688, 10404, 0, 82386, 787536, 2070492, 1217748, 269638, 41616, 0, 479148, 8423568, 53647609, 62476744, 15883746, 1873728, 167281, 0, 2894976, 98893920 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts .0.......36.........76..........344...........2178...........15556 .0......144........528.........4704..........56880..........787536 .0......625.......4898........81954........2070492........53647609 .0.....2601......38688......1217748.......62476744......3232334529 .0....10404.....269638.....15883746.....1628730346....167631328804 .0....41616....1873728....207296448....42425454480...8709248924880 .0...167281...13349904...2745709200..1124519007690.461326213311625 .0...670761...94039306..36033729098.29517820715106 .0..2683044..656071804.468737604632 .0.10732176.4575740208 LINKS R. H. Hardin, Table of n, a(n) for n = 1..83 FORMULA Empirical for column k: k=1: a(n) = a(n-1) k=2: [order 8] k=3: [order 53] Empirical for row n: n=1: [linear recurrence of order 30] n=2: [order 31] EXAMPLE Some solutions for n=3 k=4 ..1..1..0..0..1..0....1..0..0..0..1..1....1..0..1..0..0..0....0..0..1..1..1..1 ..1..0..1..0..0..0....1..1..0..0..1..0....0..0..1..1..1..1....0..0..0..1..0..1 ..0..1..1..0..0..1....0..1..1..1..1..0....0..1..1..0..0..1....1..1..0..0..1..0 ..1..1..0..1..1..1....1..0..1..1..0..1....0..1..1..0..0..1....1..0..0..0..1..1 ..1..0..0..0..1..1....0..1..1..1..1..0....1..1..1..1..0..0....1..0..0..0..1..1 CROSSREFS Sequence in context: A167264 A292156 A265489 * A309379 A022071 A181635 Adjacent sequences: A262792 A262793 A262794 * A262796 A262797 A262798 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Oct 02 2015 STATUS approved

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)