A264087 Number of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having index change +-(.,.) 0,0 0,1 or 2,-2.

169, 8788, 456976, 19553300, 836655625, 35960283125, 1545608400625, 66425039324500, 2854724293344400, 122686726306616820, 5272674789270374721, 226602328913809523253, 9738627455964881203129, 418534378290010327242292

Offset

1,1

Comments

Column 5 of A264090.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Formula

Empirical: a(n) = 43*a(n-1) -a(n-2) +1848*a(n-4) -79464*a(n-5) +1848*a(n-6) -1848*a(n-8) +79464*a(n-9) -1848*a(n-10) +a(n-12) -43*a(n-13) +a(n-14)

Example

Some solutions for n=2
..1..0.12..3..5..4....0..1.12.13.14..4....1..0.12..2..4..5....0..1..2..3..5.15
..6..8..7.10..9.11....6..7..9..8.10.11....6..8..7.10..9.11....6..7..9..8.10.11
..2.13.14.16.15.17....2..3.15..5.16.17...13..3.14.16.15.17...12.13..4.14.16.17

Crossrefs

Cf. A264090.

Sequence in context: A189277 A012170 A264269 * A163023 A052066 A264276

Adjacent sequences: A264084 A264085 A264086 * A264088 A264089 A264090

Keyword

nonn

Author

R. H. Hardin, Nov 03 2015

Status

approved