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A255145 Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 1 and no column sum 1 1
784, 4576, 29731, 190731, 1241971, 8173810, 53762469, 353508918, 2326278688, 15311112333, 100764625099, 663153932703, 4364538269828, 28725088912609, 189051972965420, 1244235148878152, 8188881476050733, 53894720638538655 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A255149
LINKS
FORMULA
Empirical recurrence of order 76 (see link above)
EXAMPLE
Some solutions for n=4
..1..0..1..1..0..1....0..1..1..1..1..0....0..1..1..1..1..1....1..0..1..1..1..0
..1..1..1..1..1..1....1..1..1..1..0..1....1..1..0..1..1..0....1..1..1..1..0..1
..1..1..1..1..1..1....1..1..1..1..1..1....1..1..1..1..0..1....1..1..1..1..1..1
..1..1..1..1..0..1....1..1..1..1..1..1....0..1..1..1..1..1....0..1..1..1..1..1
..1..1..1..1..1..1....1..1..0..1..1..1....1..1..0..1..1..1....1..1..1..1..0..1
..1..1..1..0..1..1....1..0..1..1..1..0....1..1..1..0..1..1....1..0..1..1..1..0
CROSSREFS
Sequence in context: A187935 A258539 A250809 * A203790 A223493 A231976
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 15 2015
STATUS
approved

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Last modified February 26 09:17 EST 2024. Contains 370336 sequences. (Running on oeis4.)