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 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 7
 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 (list; table; graph; refs; listen; history; text; internal format)
 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

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Last modified December 2 13:14 EST 2023. Contains 367521 sequences. (Running on oeis4.)