A264566 Number of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having directed index change 1,0 1,1 0,-1 or -1,1.

2, 24, 143, 1130, 7808, 57265, 403872, 2873739, 20432891, 144677017, 1026964990, 7278200770, 51599366898, 365810734012, 2592996883759, 18381778773564, 130301190621786, 923665265649234, 6547577009509537, 46413487626522921

Offset: 1

Author

R. H. Hardin, Nov 17 2015

Keywords

• nonn

Comments

Column 5 of A264569.

Examples

			Some solutions for n=4
..1..6..3..4..9.10....1..6..7..4..5.10....1..6..3..8..5.10....1..6..3..8..5.10
..0..8..2.14.11..5....0.12..9..2..3.16....0.12..2.14..4.16....7..0..9..2.11..4
.13..7.15.16.17.22...13.18.15..8.17.11...13.18..7..9.17.11...13.18.15.16.21.22
.12.24.21.26.27.28...19.24.14.22.27.28...19.24.21.15.23.28...12.24.14.26.27.17
.25.18.19.20.29.23...25.26.20.21.29.23...25.26.27.20.29.22...25.19.20.28.29.23
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 84

Crossrefs

Cf. A264569.

Formula

Empirical recurrence of order 84 (see link above)