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 A302274 Number of n X 4 0..1 arrays with every element equal to 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 2
 2, 10, 29, 89, 353, 941, 3316, 12016, 34060, 120940, 415304, 1257949, 4395268, 14710881, 46444038, 159674287, 528683443, 1709740974, 5804427370, 19154720511, 62771586925, 211230338251, 697032878924, 2300170434527, 7695594400341 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A302278. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 R. H. Hardin, Empirical recurrence of order 72 FORMULA Empirical recurrence of order 72 (see link above) EXAMPLE Some solutions for n=5: 0 0 1 1 0 1 0 1 0 0 1 0 0 0 1 0 0 1 1 1 1 0 0 1 1 0 1 0 1 1 0 1 1 1 0 0 0 0 1 0 0 1 0 1 1 0 1 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 1 1 0 1 0 1 1 1 1 1 0 0 1 0 1 1 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 CROSSREFS Cf. A302278. Sequence in context: A101561 A279263 A295525 * A047112 A190186 A032250 Adjacent sequences: A302271 A302272 A302273 * A302275 A302276 A302277 KEYWORD nonn AUTHOR R. H. Hardin, Apr 04 2018 STATUS approved

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Last modified September 11 13:40 EDT 2024. Contains 375836 sequences. (Running on oeis4.)