A264248 Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,0 1,1 0,-1 -1,1 or 0,-2.

8, 296, 5055, 119737, 2982248, 70618408, 1687935233, 40609607317, 977437302120, 23543636508608, 566962401161491, 13652518078761425, 328797608381693744, 7918949594113662640, 190724207496147466785, 4593488047652485016169

Offset

1,1

Comments

Row 4 of A264244.

Links

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

Example

Some solutions for n=4
..0..3..6..7..4....0..1..6..3..4....0..2..3..4..8....1..5..3..7..4
..5..8..1..2..9....7.10.11..2..9....5..7..1.12..9....6..0..8..2..9
.11.13.16.17.14...12..5.13.14..8...11.13..6.17.14...10.11.16.14.18
.15.10.21.12.19...15.20.17.22.19...15.10.19.22.23...17.20.19.12.13
.20.22.24.23.18...21.23.16.24.18...20.21.16.24.18...21.15.22.23.24

Crossrefs

Cf. A264244.

Sequence in context: A000842 A202559 A232372 * A326013 A222792 A304057

Adjacent sequences: A264245 A264246 A264247 * A264249 A264250 A264251

Keyword

nonn

Author

R. H. Hardin, Nov 09 2015

Status

approved