A264426 Number of (5+1)X(n+1) arrays of permutations of 0..n*6+5 with each element having directed index change 0,1 2,2 1,0 -1,2 -2,-1 or -1,-1.

1, 351, 4843, 137584, 4023076, 95946259, 2486418295, 64826165535, 1652429011909, 42508454066939, 1094317644738425, 28099100591929747, 722286772733295541, 18567899507526341784, 477183716427656944275, 12264894190427166009575

Offset

1,2

Comments

Row 5 of A264422.

Links

R. H. Hardin, Table of n, a(n) for n = 1..137

Example

Some solutions for n=4
.11.12..8..9..7....6..0..8..9..7....6.12..8..2..3...11..0..8..9..3
..0..1.13..3..4...16..1..2..3..4...11..1.13..7..4...16..1.13..7..4
.16..6.18.24..2....5.22.18.24.13...16.10..0.24..9....5..6.18.12..2
.10.22..5.17.14...10.11.12.17.14...21.15..5.29.14...21.22.28.24.14
.15.27.25.29.19...15.27.21.29.19...26.27.28.18.19...15.27.10.29.19
.20.21.26.23.28...20.25.26.23.28...20.25.22.23.17...20.25.26.23.17

Crossrefs

Cf. A264422.

Sequence in context: A355973 A092374 A273255 * A231707 A220333 A221294

Adjacent sequences: A264423 A264424 A264425 * A264427 A264428 A264429

Keyword

nonn

Author

R. H. Hardin, Nov 12 2015

Status

approved