A264022 Number of (7+1)X(n+1) arrays of permutations of 0..n*8+7 with each element having index change +-(.,.) 0,0 1,2 or 2,2.

1, 610, 372100, 46131250, 5719140625, 1201888840625, 252579343635025, 48585262182665120, 9345687843615794176, 1837459507629935674144, 361263664983848912725561, 70936527322260095931846664

Offset

1,2

Comments

Row 7 of A264017.

Links

R. H. Hardin, Table of n, a(n) for n = 1..60

Example

Some solutions for n=2
..5..1..2....0..1..2....0..1..2....8..1..2....5..1..2....0..1..2....5..1..2
..8..4..0....3..4..5....8..4..5...11..4..5...11..4..0....3..4..5...11..4..0
.14..7..3...14..7..8...11..7..3...14..7..0....6..7..8....6..7..8...14..7..8
..9.10.11...17.10.11....9.10..6....9.10..3...14.10..3....9.10.11....9.10..3
.12.13..6...20.13..6...20.13.14...17.13..6...17.13..9...17.13.14...17.13..6
.20.16.17...23.16..9...15.16.17...20.16.12...20.16.12...15.16.12...23.16.12
.18.19.15...18.19.12...23.19.12...18.19.15...18.19.15...23.19.20...18.19.20
.21.22.23...21.22.15...21.22.18...21.22.23...21.22.23...21.22.18...21.22.15

Crossrefs

Cf. A264017.

Sequence in context: A224202 A232323 A264070 * A223810 A223760 A223848

Adjacent sequences: A264019 A264020 A264021 * A264023 A264024 A264025

Keyword

nonn

Author

R. H. Hardin, Nov 01 2015

Status

approved