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A252034 Number of (n+2)X(2+2) 0..4 arrays with every 3X3 subblock row and column sum nonprime and every diagonal and antidiagonal sum prime 1
31774, 55941, 84953, 183494, 710758, 2297641, 9138994, 27977649, 118955569, 380855595, 1552701716, 4826092817, 20665212175, 66338031686, 273170530792, 850783059320, 3644378584228, 11704818279088, 48350109615945 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 2 of A252039
LINKS
EXAMPLE
Some solutions for n=4
..0..3..3..0....0..1..3..4....0..0..1..0....0..4..2..0....2..3..3..0
..4..4..4..4....0..4..2..4....3..3..0..3....2..1..3..4....4..2..2..4
..4..1..3..0....4..1..3..0....3..3..0..3....4..4..4..4....0..3..3..0
..2..4..2..4....0..4..4..0....4..4..1..4....0..3..1..0....0..4..4..0
..0..1..3..2....4..1..3..0....3..3..0..1....0..2..4..0....0..3..3..0
..2..4..4..0....0..4..2..0....1..3..0..1....4..1..3..4....0..2..2..0
CROSSREFS
Sequence in context: A184206 A193742 A206114 * A284519 A183704 A278013
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 12 2014
STATUS
approved

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Last modified March 4 02:53 EST 2024. Contains 370522 sequences. (Running on oeis4.)