A234412 T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 12 and no adjacent elements equal

300, 2540, 2540, 21288, 38236, 21288, 185000, 578080, 578080, 185000, 1604528, 9552088, 14995212, 9552088, 1604528, 14012832, 160156724, 462953524, 462953524, 160156724, 14012832, 122325680, 2732474648, 14549138832, 28707486504

Offset

1,1

Comments

Table starts

.......300........2540..........21288...........185000.............1604528

......2540.......38236.........578080..........9552088...........160156724

.....21288......578080.......14995212........462953524.........14549138832

....185000.....9552088......462953524......28707486504.......1837780395524

...1604528...160156724....14549138832....1837780395524.....238953447046476

..14012832..2732474648...478670480044..126450980383644...34542252827375948

.122325680.46838063500.15886650199580.8845207288479456.5091700269456920600

Links

R. H. Hardin, Table of n, a(n) for n = 1..84

Formula

Empirical for column k:

k=1: [linear recurrence of order 10]

k=2: [order 52]

Example

Some solutions for n=2 k=4
..0..2..1..6..3....1..2..0..4..1....0..1..2..6..5....1..2..0..4..3
..1..6..0..2..0....0..6..5..6..0....1..6..1..0..1....0..6..2..6..0
..0..2..1..6..2....1..4..0..4..3....0..4..0..5..6....2..4..0..4..2

Crossrefs

Sequence in context: A188252 A128391 A328132 * A234406 A092715 A241943

Adjacent sequences: A234409 A234410 A234411 * A234413 A234414 A234415

Keyword

nonn,tabl

Author

R. H. Hardin, Dec 25 2013

Status

approved