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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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified January 27 02:46 EST 2020. Contains 331291 sequences. (Running on oeis4.)