A264675 Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having directed index change -1,-1 1,0 -1,-2 -2,-2 or 0,1.

3, 588, 17443, 714235, 29875350, 1095840260, 40765995197, 1494347569074, 54204721906375, 1966753578705875, 71178721732614714, 2573134003964620565, 93001271214814999684, 3360101883867911885437, 121381797022850227205242

Offset: 1

Author

R. H. Hardin, Nov 20 2015

Keywords

• nonn

Comments

Column 7 of A264676.

Examples

			Some solutions for n=3
.18..0.12..2..3.14..5..6...10..0..1.13..3..4..5..6...10..0.12..2..3..4..5..6
.17..1..9.10..4.22.13..7...17.18..2.21.22.12.23..7...26..1.20.21.11.23.13..7
..8.27.28.11.19.30.31.15....8..9.27.11.19.31.14.15....8..9.17.18.29.31.14.15
.16.24.25.26.20.21.29.23...16.24.25.26.20.28.29.30...16.24.25.19.27.28.22.30
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..45

Crossrefs

Cf. A264676.