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A222100
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Number of nX4 0..5 arrays with entries increasing mod 6 by 0, 1, 2 or 3 rightwards and downwards, starting with upper left zero
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1
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64, 6108, 591476, 57455502, 5585183876, 543019517890, 52797111762730, 5133443560512386, 499123853931892192, 48529752000392073542, 4718542457622698098922, 458783377102773490580554
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OFFSET
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1,1
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COMMENTS
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Column 4 of A222104
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..210
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FORMULA
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Empirical: a(n) = 151*a(n-1) -6273*a(n-2) +110618*a(n-3) -904712*a(n-4) +2630178*a(n-5) +7987596*a(n-6) -72611530*a(n-7) +140477839*a(n-8) +129218977*a(n-9) -789095099*a(n-10) +720979656*a(n-11) +645249481*a(n-12) -1424564792*a(n-13) +476315366*a(n-14) +501277608*a(n-15) -460380720*a(n-16) +135434720*a(n-17) -13335600*a(n-18) -361696*a(n-19) +83568*a(n-20)
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EXAMPLE
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Some solutions for n=3
..0..3..3..3....0..0..3..4....0..0..3..0....0..3..3..4....0..0..0..1
..1..3..3..0....0..2..3..5....0..3..0..1....2..3..5..1....0..0..1..2
..2..3..3..3....2..2..4..0....3..0..2..2....3..4..5..2....3..0..2..3
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CROSSREFS
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Sequence in context: A317571 A240346 A009823 * A223265 A266631 A085525
Adjacent sequences: A222097 A222098 A222099 * A222101 A222102 A222103
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin Feb 07 2013
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STATUS
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approved
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