A264108 Number of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having index change +-(.,.) 0,0 0,2 or 1,1.

512, 21025, 911754, 39087504, 1680100825, 72203451849, 3103083479700, 133360207252561, 5731386289974585, 246316246944235776, 10585867260296108090, 454945975615318339161, 19552091085050956659200

Offset

1,1

Comments

Column 5 of A264110.

Links

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

Formula

Empirical: a(n) = 43*a(n-1) -a(n-2) +1848*a(n-4) -79464*a(n-5) +1848*a(n-6) -1848*a(n-8) +79464*a(n-9) -1848*a(n-10) +a(n-12) -43*a(n-13) +a(n-14)

Example

Some solutions for n=2
..2..3..0..1..4..5....7..1..9..5..4..3....0..1..9..5.11..3....2..1..0.10..4..5
.13..7..6..9..8.11...13..0.10..2.17.11....8..7.10..2.17..4....6..7.15..9..3.11
.12.15.16.17.14.10...12..6.16..8.14.15...12..6.14.13.16.15...14.13.12..8.16.17

Crossrefs

Cf. A264110.

Sequence in context: A236215 A254182 A253954 * A254353 A253793 A253756

Adjacent sequences: A264105 A264106 A264107 * A264109 A264110 A264111

Keyword

nonn

Author

R. H. Hardin, Nov 03 2015

Status

approved