A264135 Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,2 or 1,2.

1, 89, 7921, 178000, 4000000, 160564000, 6445199524, 219637743496, 7484754845584, 273712171834464, 10009459836154944, 358827105960491520, 12863520517551001600, 465176569014432986560, 16821929895847549418521

Offset

1,2

Comments

Row 4 of A264131.

Links

R. H. Hardin, Table of n, a(n) for n = 1..20

Example

Some solutions for n=4
..0..3..4..1..2....0..8..4..3..2....0..3..4..1..2....0..1..9..3..4
..7..6..5..8..9....5..6..9..1..7....5..6..7..8..9....5.13..7..8..2
.10.13.14.11.12...12.18.10.13.14...12.18.10.13.14...12.11.10..6.14
.15.18.19.16.17...22.16.15.11.19...15.23.24.11.19...17.16.15.18.19
.20.21.24.23.22...20.21.24.23.17...20.21.22.16.17...20.23.22.21.24

Crossrefs

Cf. A264131.

Sequence in context: A264323 A100419 A328355 * A264020 A020472 A263431

Adjacent sequences: A264132 A264133 A264134 * A264136 A264137 A264138

Keyword

nonn

Author

R. H. Hardin, Nov 03 2015

Status

approved