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A257421
Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
1
10684, 27244, 117324, 449022, 1290910, 3917190, 11883298, 33766938, 96478988, 272492320, 759572898, 2120432736, 5906478692, 16369510406, 45291725362, 125081097988, 344778228786, 949378792506, 2611483388044, 7175959675462
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OFFSET
1,1
COMMENTS
Column 3 of
A257426
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..210
R. H. Hardin,
Empirical recurrence of order 88
FORMULA
Empirical recurrence of order 88 (see link above)
EXAMPLE
Some solutions for n=3
..0..0..0..1..1....0..1..0..0..1....0..0..1..0..1....0..0..1..0..0
..0..0..1..1..1....1..1..0..1..1....0..0..0..0..0....0..0..0..1..1
..1..0..1..0..0....1..0..0..1..1....0..0..1..1..1....1..1..1..1..0
..0..0..1..1..1....0..0..1..1..0....0..1..1..1..1....1..0..1..1..1
..1..0..1..1..0....0..1..1..0..0....0..1..1..0..1....1..0..1..1..1
CROSSREFS
Cf.
A257426
Sequence in context:
A065320
A164565
A212075
*
A257428
A254237
A207282
Adjacent sequences:
A257418
A257419
A257420
*
A257422
A257423
A257424
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Apr 22 2015
STATUS
approved
