A264505 Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having directed index change -1,1 0,-1 0,1 or 1,0.

46, 1417, 35356, 934515, 24950224, 655642859, 17171750212, 450129538653, 11788157463588, 308570749630453, 8076755729898913, 211390491160857966, 5532382648120677164, 144787653028640198647, 3789193115506651891577

Offset

1,1

Comments

Column 7 of A264506.

Links

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

Example

Some solutions for n=3
..1..2..3..4..5..6.13.14....1..2..9..4..3..6..7.14....1..8..3..2..5..4..7..6
..0.10.11.18.19.12.15..7....0.10.17.12.11..5.21.22....0.16..9.12.11.20.15.22
..8..9.17.26.21.20.29.22....8.24.19.18.27.13.29.15...17.24.10.18.19.13.14.30
.16.24.25.28.27.30.31.23...16.26.25.28.20.30.31.23...25.26.27.28.29.21.31.23

Crossrefs

Cf. A264506.

Sequence in context: A078195 A103725 A332858 * A308101 A291129 A115608

Adjacent sequences: A264502 A264503 A264504 * A264506 A264507 A264508

Keyword

nonn

Author

R. H. Hardin, Nov 15 2015

Status

approved