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A264075 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 0,1 or 1,2. 1
64, 6765, 1210000, 94000060, 10427064769, 1084282319384, 118020590202856, 12417526726851620, 1326024276162241425, 141133437011428928000, 15037363809591528083800, 1601021055218612828398400 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A264071.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..152

FORMULA

Empirical: a(n) = 119*a(n-1) -1238*a(n-2) -11504*a(n-3) +132848*a(n-4) +180912*a(n-5) -203520*a(n-6) +1542400*a(n-7) +2403200*a(n-8) -768000*a(n-9) +640000*a(n-10) for n>19

EXAMPLE

Some solutions for n=2

..0..5..2....0..5..2....0..1..2....0..5..2....4..5..2....0..5..2....0..1..2

..8..4..1....8..4..1....3..8..5....3..8..1....8..0..1....7..8..1....8..4..5

..6.11..3...10.11..3...11..7..4...10..7..4....6.11..3...11..3..4...11..7..3

..9.10..7...14..6..7...13.14..6....9..6.11...14.10..7....9.14..6...13.14..6

.17.13.14...12.13..9...12..9.10...12.17.14...12.17..9...17.13.10...12..9.10

.15.16.12...20.16.17...19.20.17...19.20.13...19.16.13...19.20.12...20.16.17

.18.19.20...18.19.15...18.15.16...18.15.16...18.15.20...18.15.16...18.19.15

CROSSREFS

Cf. A264071.

Sequence in context: A264188 A333583 A183243 * A223198 A281836 A299080

Adjacent sequences:  A264072 A264073 A264074 * A264076 A264077 A264078

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 02 2015

STATUS

approved

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Last modified December 2 05:01 EST 2021. Contains 349437 sequences. (Running on oeis4.)