A264303 Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,1 0,-2 1,0 or -1,0.

0, 56, 192, 1672, 25080, 146688, 1346944, 13834555, 104830640, 937391448, 8580314512, 71419802456, 629686664072, 5565143259715, 47786322624048, 418580670492536, 3662684910895709, 31774718564557848, 277532293674535584

Offset

1,2

Comments

Row 4 of A264299.

Links

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

Example

Some solutions for n=4
..5..3..4..2..9....5..0..1..2..3....5..6..7..8..3....5..0..4..2..3
..0..1..6.13.14...10..8..9..7..4....0..1..2.13..4....7..1..6.13..8
.12.10..7..8.19...15..6.14.12.13...12.10.14.18..9...12.16.11.18..9
.20.11.22.17.24...20.11.19.17.24...17.11.16.23.24...10.21.19.17.14
.15.16.21.18.23...22.16.21.18.23...15.20.21.22.19...15.20.24.22.23

Crossrefs

Cf. A264299.

Sequence in context: A234114 A234107 A136547 * A200833 A241611 A179403

Adjacent sequences: A264300 A264301 A264302 * A264304 A264305 A264306

Keyword

nonn

Author

R. H. Hardin, Nov 11 2015

Status

approved