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A252051 Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum not 1 3 6 or 8 and every diagonal and antidiagonal sum 1 3 6 or 8 1
7642, 10324, 17166, 29180, 112542, 233342, 398502, 1545586, 3493324, 6364926, 25030764, 55982864, 107529180, 434690496, 981158992, 1847050606, 7975660404, 17661934362, 33398453950, 148936808798, 330139202194, 605355952468 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A252053

LINKS

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

R. H. Hardin, Empirical recurrence of order 71

FORMULA

Empirical recurrence of order 71 (see link above)

EXAMPLE

Some solutions for n=4

..0..1..1..0..3..2..2..1....2..1..2..1..2..1..2..1....3..1..1..3..1..1..0..1

..0..0..2..2..1..1..3..0....0..1..3..1..0..1..3..1....1..2..2..1..2..2..1..2

..2..1..1..3..0..2..2..1....3..2..0..2..3..2..0..2....0..1..1..3..1..1..3..1

..0..3..2..2..1..1..0..3....1..2..1..2..1..2..1..2....3..1..1..0..1..1..3..1

..2..1..1..0..3..2..2..1....1..0..1..3..1..3..1..3....1..2..2..1..2..2..1..2

..3..0..2..2..1..1..0..3....2..0..2..0..2..0..2..0....0..1..1..3..1..1..3..1

CROSSREFS

Sequence in context: A189551 A235907 A252968 * A038011 A205040 A252406

Adjacent sequences:  A252048 A252049 A252050 * A252052 A252053 A252054

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 13 2014

STATUS

approved

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Last modified October 27 07:47 EDT 2021. Contains 348272 sequences. (Running on oeis4.)