cp's OEIS Frontend

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

%I A189654 #7 Jul 22 2025 11:52:16
%S A189654 1,1681,144353,64890337,16718653553,5760755884032,1778231752192145,
%T A189654 579697460209171993,184886869974436661041,59593521044870694533545,
%U A189654 19125202990272640992094705,6150485955232431794501210601
%N A189654 Number of 6Xn array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally.
%C A189654 Row 6 of A189650
%H A189654 R. H. Hardin, <a href="/A189654/b189654.txt">Table of n, a(n) for n = 1..183</a>
%e A189654 Some solutions for 6X3
%e A189654 ..0..3..2....0..2..4....0..1..2....1..0..2....0..1..2....0..5..1....0..3..2
%e A189654 ..1..6..5....1..3..5....3..6..4....3..5..4....3..5..7....3..2..7....1..8..4
%e A189654 ..7..9..4....6.11..8...10..5..8....6.11..8....4..9..8....4..6..8....6..5..7
%e A189654 .10..8.11...10..9..7....7..9.11....9.14..7...13..6.11...10.14.11...13.10.11
%e A189654 .12.14.16...16.12.13...16.15.14...13.15.10...10.12.14...16..9.13...16..9.14
%e A189654 .15.17.13...15.14.17...13.12.17...16.12.17...15.16.17...15.12.17...15.12.17
%K A189654 nonn
%O A189654 1,2
%A A189654 _R. H. Hardin_ Apr 24 2011