A264680 Number of (5+1)X(n+1) arrays of permutations of 0..n*6+5 with each element having directed index change -1,-1 1,0 -1,-2 -2,-2 or 0,1.

1, 44, 603, 6851, 123222, 2025372, 29875350, 436294812, 6478725972, 95858657256, 1406076314579, 20604755924271, 302274882992297, 4432087245361391, 64934929110247763, 951285313173076076, 13937110096540031221

Offset

1,2

Comments

Row 5 of A264676.

Links

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

Example

Some solutions for n=4
..6.13..1..2..3....7..8..1..2..3...12..8..1..9..3....6..0..1..9..3
..0.12.19..7..4....0..5..6.14..4....0..5..2..7..4...11..5..2.14..4
..5.18.11..8..9...17.10.11.12..9...16..6.11.19.13...17.10..7..8.13
.10.15.24.17.14...21.15.24.13.18...10.22.29.17.14...27.22.12.24.18
.26.16.21.29.23...27.16.29.22.19...15.28.21.18.23...15.16.21.29.19
.20.25.22.27.28...20.25.26.23.28...20.25.26.27.24...20.25.26.23.28

Crossrefs

Cf. A264676.

Sequence in context: A339852 A202075 A297680 * A356415 A289647 A252869

Adjacent sequences: A264677 A264678 A264679 * A264681 A264682 A264683

Keyword

nonn

Author

R. H. Hardin, Nov 20 2015

Status

approved