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 A295034 Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 2 1's. 0
 1, 10, 140, 6686, 898493, 355281224, 411280569141, 1377458578461777, 13439667379225204666, 381706479329790703639253, 31542814403404743062254741113, 7585239934805237805543429969496485 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A295040. LINKS EXAMPLE Some solutions for n=4 ..0..1..1..0. .1..1..1..1. .1..0..0..0. .0..0..0..1. .1..0..1..1 ..0..0..1..1. .1..0..0..1. .1..0..0..0. .0..0..1..1. .1..0..1..0 ..1..0..0..1. .0..0..0..0. .1..0..0..0. .1..0..1..0. .0..0..0..1 ..1..1..0..1. .0..1..1..1. .0..0..0..0. .1..1..0..0. .0..1..1..1 CROSSREFS Cf. A295040. Sequence in context: A215289 A319578 A051618 * A221576 A254834 A093470 Adjacent sequences:  A295031 A295032 A295033 * A295035 A295036 A295037 KEYWORD nonn AUTHOR R. H. Hardin, Nov 12 2017 STATUS approved

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Last modified June 26 00:12 EDT 2022. Contains 354870 sequences. (Running on oeis4.)