A264160 Number of (n+1)X(3+1) arrays of permutations of 0..n*4+3 with each element having directed index change 0,1 0,-1 0,2 1,0 -1,0 or 2,0.

29, 412, 5296, 82167, 1149961, 16609233, 239550224, 3438669140, 49526113317, 712398787569, 10249245851325, 147472342355316, 2121680656543408, 30526009961902591, 439192800002932641, 6318864660931001013

Offset

1,1

Comments

Column 3 of A264163.

Links

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

Example

Some solutions for n=4
..4..5..3..2....1..5..0..7....1..2..3..7....1..5..6..7....4..0..3..2
..8..9.10..6....8..9..2..6....8..4.10..6....0..9..2..3....8..1.10..6
..0..1.11..7...12.10.11..3....0..5..9.15....4..8.11.15....9..5.14..7
.16.17.13.14....4.14.18.19...13.14.12.19...13.17.10.14...16.12.15.11
.12.18.19.15...17.13.16.15...17.18.16.11...12.16.19.18...17.13.19.18

Crossrefs

Cf. A264163.

Sequence in context: A022624 A042630 A174885 * A210302 A163021 A125464

Adjacent sequences: A264157 A264158 A264159 * A264161 A264162 A264163

Keyword

nonn

Author

R. H. Hardin, Nov 06 2015

Status

approved