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A189654 Number of 6Xn array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally 1

%I #5 Mar 31 2012 12:36:16

%S 1,1681,144353,64890337,16718653553,5760755884032,1778231752192145,

%T 579697460209171993,184886869974436661041,59593521044870694533545,

%U 19125202990272640992094705,6150485955232431794501210601

%N Number of 6Xn array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally

%C Row 6 of A189650

%H R. H. Hardin, <a href="/A189654/b189654.txt">Table of n, a(n) for n = 1..183</a>

%e Some solutions for 6X3

%e ..0..3..2....0..2..4....0..1..2....1..0..2....0..1..2....0..5..1....0..3..2

%e ..1..6..5....1..3..5....3..6..4....3..5..4....3..5..7....3..2..7....1..8..4

%e ..7..9..4....6.11..8...10..5..8....6.11..8....4..9..8....4..6..8....6..5..7

%e .10..8.11...10..9..7....7..9.11....9.14..7...13..6.11...10.14.11...13.10.11

%e .12.14.16...16.12.13...16.15.14...13.15.10...10.12.14...16..9.13...16..9.14

%e .15.17.13...15.14.17...13.12.17...16.12.17...15.16.17...15.12.17...15.12.17

%K nonn

%O 1,2

%A _R. H. Hardin_ Apr 24 2011

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Last modified February 25 06:24 EST 2024. Contains 370310 sequences. (Running on oeis4.)