A189654 Number of 6Xn array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally.
1, 1681, 144353, 64890337, 16718653553, 5760755884032, 1778231752192145, 579697460209171993, 184886869974436661041, 59593521044870694533545, 19125202990272640992094705, 6150485955232431794501210601
Offset: 1
Keywords
Examples
Some solutions for 6X3 ..0..3..2....0..2..4....0..1..2....1..0..2....0..1..2....0..5..1....0..3..2 ..1..6..5....1..3..5....3..6..4....3..5..4....3..5..7....3..2..7....1..8..4 ..7..9..4....6.11..8...10..5..8....6.11..8....4..9..8....4..6..8....6..5..7 .10..8.11...10..9..7....7..9.11....9.14..7...13..6.11...10.14.11...13.10.11 .12.14.16...16.12.13...16.15.14...13.15.10...10.12.14...16..9.13...16..9.14 .15.17.13...15.14.17...13.12.17...16.12.17...15.16.17...15.12.17...15.12.17
Links
- R. H. Hardin, Table of n, a(n) for n = 1..183
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