A264517 Number of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having directed index change -1,0 0,2 -1,-2 or 1,0.

4, 4, 196, 1444, 18769, 186624, 2007889, 20738916, 216384100, 2246191236, 23336228644, 242343536656, 2516566604161, 26133852688384, 271375312681729, 2818084749524496, 29263464821074276, 303881662686399876

Offset: 1

Author

R. H. Hardin, Nov 16 2015

Keywords

• nonn

Comments

Column 5 of A264520.

Examples

			Some solutions for n=4
..8..7.10..1..2..3....8..9.10..1..2..3....8..9..0..1..2..3....8..9..0.11..2..3
..0.13.16.17..4..5....0.13..6.15..4..5...14.15..6.17..4..5...14..1.16..7..4..5
..6.21.20..9.14.11...20..7.12.21.14.11...20..7.22.23.10.11....6.21.12.23.10.15
.12.27.26.15.28.29...26.27.28.29.16.17...12.13.28.29.16.21...24.13.26.29.28.17
.18.19.24.25.22.23...18.19.24.25.22.23...18.19.24.25.26.27...18.19.20.25.22.27
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 90

Crossrefs

Cf. A264520.

Formula

Empirical recurrence of order 90 (see link above)