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 A189449 T(n,k)=Number of nXk array permutations with each element moving zero or one space horizontally or diagonally 14
 1, 2, 1, 3, 5, 1, 5, 16, 13, 1, 8, 61, 80, 34, 1, 13, 225, 666, 400, 89, 1, 21, 841, 5080, 7300, 2000, 233, 1, 34, 3136, 40106, 118128, 80282, 10000, 610, 1, 55, 11705, 313136, 2008890, 2735828, 883049, 50000, 1597, 1, 89, 43681, 2455013, 33735505, 100047288 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts .1.....2.......3...........5..............8................13 .1.....5......16..........61............225...............841 .1....13......80.........666...........5080.............40106 .1....34.....400........7300.........118128...........2008890 .1....89....2000.......80282........2735828.........100047288 .1...233...10000......883049.......63367633........4982424404 .1...610...50000.....9712873.....1467726607......248187289625 .1..1597..250000...106834338....33995627281....12362821462925 .1..4181.1250000..1175098084...787410049440...615823316590381 .1.10946.6250000.12925203122.18238068717816.30675714678416140 LINKS R. H. Hardin, Table of n, a(n) for n = 1..179 EXAMPLE Some solutions for 5X3 ..1..0..2....0..5..2....0..5..2....0..2..1....0..2..1....4..5..2....1..0..2 ..4..3..5....7..4..1....7..4..1....3..4..5....3..5..4....3..0..1....4..3..5 ..6..7..8....6..3..8...10..3..8....7.11..8....6..8..7....6..8..7...10..7..8 .10..9.11....9.11.10....9..6.11...13..6.10...10..9.11...13.10.11...13..6.11 .12.14.13...12.14.13...12.13.14...12..9.14...12.13.14...12..9.14...12..9.14 CROSSREFS Column 2 is A001519(n+1) Column 3 is A055842 Row 1 is A000045(n+1) Sequence in context: A125076 A220562 A215564 * A239286 A109533 A062705 Adjacent sequences: A189446 A189447 A189448 * A189450 A189451 A189452 KEYWORD nonn,tabl AUTHOR R. H. Hardin Apr 22 2011 STATUS approved

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Last modified March 1 04:57 EST 2024. Contains 370430 sequences. (Running on oeis4.)