A264208 Number of (2+1)X(n+1) arrays of permutations of 0..n*3+2 with each element having index change +-(.,.) 0,0 0,2 or 1,0.

9, 96, 1024, 7328, 52441, 422505, 3404025, 26420400, 205062400, 1610785200, 12652875225, 99005135055, 774686906569, 6069420974096, 47551947307264, 372398730656880, 2916406634175225, 22842723404402325, 178915383889049025

Offset

1,1

Comments

Row 2 of A264207.

Links

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

R. H. Hardin, Empirical recurrence of order 92

Formula

Empirical recurrence of order 92 (see link above)

Example

Some solutions for n=4
..0..1..7..3..9....0..3..2..8..4....0..3..2..1..9....0..3..2..1..4
.10..6..2..8..4....5..1..7..6..9....5.11..7.13..4....5..6.12.13..9
..5.11.12.13.14...12.11.10.13.14...10..6.12..8.14...10.11..7..8.14

Crossrefs

Cf. A264207.

Sequence in context: A069055 A228011 A024116 * A357209 A070896 A081131

Adjacent sequences: A264205 A264206 A264207 * A264209 A264210 A264211

Keyword

nonn

Author

R. H. Hardin, Nov 08 2015

Status

approved