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 A258562 Number of (n+2)X(2+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 1
 179776, 4884100, 134652816, 3749847696, 103717490704, 2859893618884, 79025557095424, 2186180765718544, 60436066572750400, 1669986326796722064, 46157911722096725056, 1276016937808498835524, 35271105508345095065664 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 2 of A258564 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=1 ..0..2..1..1....1..0..2..2....0..2..0..2....0..2..0..0....0..1..0..2 ..1..2..2..2....1..2..2..0....2..2..1..2....2..2..0..0....1..1..2..1 ..2..0..0..1....2..2..2..0....1..0..0..1....0..1..1..1....0..0..1..2 CROSSREFS Cf. A258564 Sequence in context: A056748 A247113 A186062 * A204787 A060232 A190380 Adjacent sequences: A258559 A258560 A258561 * A258563 A258564 A258565 KEYWORD nonn AUTHOR R. H. Hardin, Jun 03 2015 STATUS approved

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Last modified March 23 03:39 EDT 2023. Contains 361434 sequences. (Running on oeis4.)