A264347 Number of (7+1)X(n+1) arrays of permutations of 0..n*8+7 with each element having index change +-(.,.) 0,0 0,1 or 1,2.

256, 75025, 49000000, 10878455069, 4241136597604, 1400983500645217, 513959727627375369, 177045004728184406986, 63460182455433271780660, 22401940593595999915880850, 7987037973987954760973196580

Offset: 1

Author

R. H. Hardin, Nov 11 2015

Keywords

• nonn

Comments

Row 7 of A264341.

Examples

			Some solutions for n=2
..1..0..2....0..1..2....0..1..2....5..1..2....0..2..1....5..1..2....0..1..2
..3..4..5....4..3..5....3..4..5....3..4..0....3..4..5....4..3..0....3..4..5
..6..8..7....6..7..8....6..8..7....6..7..8....7..6..8....6..7..8....7..6..8
.10..9.11....9.10.11....9.10.11....9.11.10...10..9.11....9.10.11...14.11.10
.13.12.14...12.13.14...17.13.14...12.13.14...17.13.14...13.12.14...12.13..9
.15.17.16...20.16.17...15.16.12...15.17.16...20.16.12...20.17.16...15.16.17
.23.20.19...18.19.15...23.20.19...18.20.19...23.19.15...23.19.15...18.19.20
.22.21.18...21.23.22...22.21.18...21.22.23...22.21.18...21.22.18...21.23.22
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..15

Crossrefs

Cf. A264341.