A264530 Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change -2,-2 -1,0 0,1 or 1,0.

1, 1, 29, 166, 1424, 8180, 59259, 373106, 2412437, 15444786, 98319654, 631317049, 4000509800, 25638291546, 162726625613, 1040425051956, 6615457333531, 42225119685838, 268805885562269, 1714155400353368, 10919104048916128

Offset

1,3

Comments

Column 4 of A264534.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=4
..5..0.14..8..9....5..0..7..2..3....5..0..7..8..3...12..0.14..2..3
.17..1..2..3..4...17..1..6.13..4...17..1..2.13..4...10..1.19..7..4
.22..6..7.12.13...22.16.24..8..9...22..6.24.12..9....5..6.11..8..9
.10.11.16.23.24...10.11.12.23.14...10.11.16.23.14...20.21.22.13.24
.15.20.21.18.19...15.20.21.18.19...15.20.21.18.19...15.16.17.18.23

Crossrefs

Cf. A264534.

Sequence in context: A142827 A142938 A264252 * A141910 A111032 A238599

Adjacent sequences: A264527 A264528 A264529 * A264531 A264532 A264533

Keyword

nonn

Author

R. H. Hardin, Nov 17 2015

Status

approved