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A258510 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the medians of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
3456356, 46808032, 1035738226, 18083959576, 291747299054, 5214669067797, 94282780215006, 1662033597780835, 29352153931907914, 521951097519998876, 9272036626115873546, 164476417603760877730, 2919288888643300508618 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A258511

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..26

EXAMPLE

Some solutions for n=1

..0..0..0..0..0..0..1..1..1....0..0..0..0..0..0..0..1..1

..0..0..0..0..0..1..1..1..0....1..1..0..0..0..0..0..1..0

..1..1..0..1..0..0..0..1..0....0..0..1..0..0..0..0..1..0

CROSSREFS

Cf. A258511

Sequence in context: A157106 A123201 A258517 * A254997 A236356 A082247

Adjacent sequences:  A258507 A258508 A258509 * A258511 A258512 A258513

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 01 2015

STATUS

approved

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Last modified May 5 19:23 EDT 2021. Contains 343573 sequences. (Running on oeis4.)