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A252104 Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 4 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 4 6 or 7 1
70372, 120128, 727203, 3681127, 31734323, 204205735, 1113772174, 10036222063, 65817065181, 375634409542, 3458799808399, 22936469743309, 134114626705579, 1249716117511253, 8335445662025071, 49308479190011558, 462065009601058771 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A252105

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

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

CROSSREFS

Sequence in context: A233987 A243135 A253738 * A236016 A204482 A186821

Adjacent sequences:  A252101 A252102 A252103 * A252105 A252106 A252107

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 14 2014

STATUS

approved

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Last modified January 22 21:15 EST 2022. Contains 350504 sequences. (Running on oeis4.)