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A233975 Number of (n+1)X(2+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 13 1
1308, 8688, 59440, 453988, 3530540, 29109544, 242057156, 2076801776, 17846457644, 156102689488, 1362078980924, 12021030945444, 105617021379536, 935901861178016, 8248332405909040, 73223590427438656, 646231370548255396 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A233980

LINKS

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

R. H. Hardin, Empirical recurrence of order 62

FORMULA

Empirical recurrence of order 62 (see link above)

EXAMPLE

Some solutions for n=3

..6..3..0....2..1..0....5..1..5....3..2..4....1..1..5....1..4..3....3..4..2

..2..4..2....0..4..0....3..2..3....2..6..3....5..2..1....2..0..4....2..6..5

..3..6..3....4..3..2....1..5..1....3..2..4....1..1..5....1..4..3....3..2..6

..2..2..4....1..5..1....1..2..3....5..1..0....5..2..3....2..0..2....1..5..6

CROSSREFS

Sequence in context: A106815 A325605 A281211 * A209853 A165936 A242606

Adjacent sequences:  A233972 A233973 A233974 * A233976 A233977 A233978

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 18 2013

STATUS

approved

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Last modified December 15 17:03 EST 2019. Contains 330000 sequences. (Running on oeis4.)