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 A231954 Number of (n+1)X(5+1) 0..1 arrays with every element equal to some horizontal, vertical, diagonal or antidiagonal neighbor, with top left element zero 1
 888, 58350, 3292876, 193955142, 11501370840, 681107245458, 40322931224352, 2387295795105696, 141340282653200376, 8368067905547685676, 495432168745975473688, 29332104206310132471746, 1736609792922871327507812 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A231957 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 R. H. Hardin, Empirical recurrence of order 50 FORMULA Empirical recurrence of order 50 (see link above) EXAMPLE Some solutions for n=2 ..0..0..0..0..1..0....0..1..1..0..0..1....0..0..0..1..1..0....0..0..0..1..1..0 ..1..1..1..0..0..1....0..1..1..0..1..1....1..0..1..1..0..0....0..0..1..1..0..0 ..1..1..1..0..1..0....1..0..1..1..1..1....1..1..1..0..0..0....1..1..1..0..1..0 CROSSREFS Sequence in context: A006915 A178270 A183751 * A224338 A250513 A252577 Adjacent sequences: A231951 A231952 A231953 * A231955 A231956 A231957 KEYWORD nonn AUTHOR R. H. Hardin, Nov 15 2013 STATUS approved

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Last modified July 15 23:38 EDT 2024. Contains 374343 sequences. (Running on oeis4.)