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 A221351 T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without 2-loops 7
 0, 0, 0, 0, 1, 0, 0, 18, 7, 0, 0, 148, 370, 38, 0, 0, 1164, 12296, 6893, 190, 0, 0, 8824, 364868, 938070, 122690, 918, 0, 0, 65932, 10612940, 103485930, 68449305, 2152076, 4367, 0, 0, 489456, 304064432, 11446121074, 27908486602, 4937698670, 37541550 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,8 COMMENTS Table starts .0.....0........0..........0...........0...........0.............0..........0 .0.....1.......18........148........1164........8824.........65932.....489456 .0.....7......370......12296......364868....10612940.....304064432.8672312531 .0....38.....6893.....938070...103485930.11446121074.1234879060395 .0...190...122690...68449305.27908486602 .0...918..2152076.4937698670 .0..4367.37541550 .0.20623 .0 LINKS R. H. Hardin, Table of n, a(n) for n = 1..49 EXAMPLE Some solutions for n=3 k=4 ..0..2..0..1....1..3..1..0....0..0..3..0....0..0..2..1....1..1..1..0 ..1..3..4..0....0..1..4..1....0..3..1..1....0..1..2..0....0..0..2..2 ..0..0..1..0....0..0..0..1....1..1..1..1....1..3..1..1....0..3..2..0 CROSSREFS Column 2 is A217340 Sequence in context: A038642 A040311 A340614 * A078085 A069951 A097534 Adjacent sequences: A221348 A221349 A221350 * A221352 A221353 A221354 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 11 2013 STATUS approved

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Last modified April 16 04:17 EDT 2024. Contains 371696 sequences. (Running on oeis4.)