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 A266127 Number of n X 4 integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself. 1
 5, 49, 117, 572, 4336, 19750, 102201, 620508, 3041449, 16217839, 93738044, 476322405, 2546428711, 14301936049, 74467601183, 398781566199, 2199927226366, 11619003130461, 62319679692416, 340185096129345, 1811374715345253 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A266131. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=4 ..2..1..0..1....1..0..2..1....1..0..0..0....1..0..0..1....0..0..1..1 ..2..1..1..0....0..2..0..1....0..2..2..1....0..2..2..0....0..2..0..1 ..1..2..2..1....0..2..1..2....0..2..1..1....1..0..2..1....0..2..1..0 ..0..0..0..0....0..0..1..2....1..0..0..1....1..2..0..1....0..2..1..2 CROSSREFS Cf. A266131. Sequence in context: A298773 A298580 A299572 * A343690 A298394 A299512 Adjacent sequences: A266124 A266125 A266126 * A266128 A266129 A266130 KEYWORD nonn AUTHOR R. H. Hardin, Dec 21 2015 STATUS approved

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Last modified July 15 19:27 EDT 2024. Contains 374334 sequences. (Running on oeis4.)