A264140 Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 1,-2 or 1,1.

320, 18000, 1903336, 163887724, 15238898080, 1376159333484, 125699825697364, 11431703076430455, 1041358177270016565, 94799852855903563200, 8632210581410571081709, 785952052399566693917019

Offset: 1

Author

R. H. Hardin, Nov 04 2015

Keywords

• nonn

Comments

Column 6 of A264142.

Examples

			Some solutions for n=2
..0..1..2..3..4.10..6....8..1..7..3..4..5..6....8..9..2..3..4.13..6
.15..8..9..5.19.17.18....2..0.14.15.11.20.13....7..0..1.18.16.12..5
.14..7.16.12.13.11.20....9.10.16.17.18.19.12...14.15.11.17.10.19.20
		

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)