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 A258564 T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum or central row sum equal to the central column sum 4
 11532, 179776, 179776, 2826448, 4884100, 2826448, 44622400, 134652816, 134652816, 44622400, 702129040, 3749847696, 6542200832, 3749847696, 702129040, 11033401600, 103717490704, 321924603456, 321924603456, 103717490704 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .........11532.........179776.........2826448.........44622400........702129040 ........179776........4884100.......134652816.......3749847696.....103717490704 .......2826448......134652816......6542200832.....321924603456...15675466093600 ......44622400.....3749847696....321924603456...28226268865600.2446055780403456 .....702129040...103717490704..15675466093600.2446055780403456 ...11033401600..2859893618884.760019986771600 ..173567878848.79025557095424 .2731694950656 LINKS R. H. Hardin, Table of n, a(n) for n = 1..39 FORMULA Empirical for column k: k=1: [linear recurrence of order 36] EXAMPLE Some solutions for n=1 k=4 ..0..0..0..0..0..1....0..0..0..0..1..2....0..0..0..0..1..0....0..0..0..0..0..0 ..2..2..1..0..1..1....2..0..1..0..2..0....2..2..2..0..1..2....1..2..2..1..1..0 ..1..1..0..0..2..0....1..1..2..0..1..0....0..1..1..0..0..1....1..2..0..0..2..1 CROSSREFS Sequence in context: A201048 A236522 A235659 * A258561 A362216 A063061 Adjacent sequences: A258561 A258562 A258563 * A258565 A258566 A258567 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Jun 03 2015 STATUS approved

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Last modified April 13 07:58 EDT 2024. Contains 371638 sequences. (Running on oeis4.)