A264144 Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 1,-2 or 1,1.

16, 512, 14400, 297920, 7001316, 163887724, 3798503424, 88222777344, 2044040513284, 47341085896775, 1096581934350825, 25398950018267007, 588299914903045444, 13626292315183613964, 315613062527522527296

Offset: 1

Author

R. H. Hardin, Nov 04 2015

Keywords

• nonn

Comments

Row 4 of A264142.

Examples

			Some solutions for n=3
..0..1..2..3....0..1..2..3....0..1..4..3....0..1..7..5....0..1..7..5
..4.10..6..7....4..5..8..9....2..5..6..9....4..3..6..2....9..3..8..2
..8..9..5.13....6..7.12.13....8..7.15.11....8..9.15.11....6..4.15.11
.12.11.19.15...10.11.19.15...17.13.14.10...17.18.19.10...12.13.16.10
.16.17.18.14...16.17.18.14...16.12.18.19...16.12.13.14...14.17.18.19
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 95

Crossrefs

Cf. A264142.

Formula

Empirical recurrence of order 95 (see link above)