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A251462 Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column 1
602, 3142, 15719, 62309, 239572, 809934, 2678350, 8222849, 24796090, 71644353, 203613185, 565710173, 1545775344, 4185949130, 11136965910, 29652176113, 77452013880, 203909911308, 525772216775, 1373878022187, 3509862980888 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A251467

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 61

FORMULA

Empirical recurrence of order 61 (see link above)

EXAMPLE

Some solutions for n=4

..1..0..2..1....1..1..2..2....1..0..1..0....2..0..0..1....1..0..2..0

..1..0..1..1....0..0..0..1....1..0..2..2....0..0..2..0....1..0..1..2

..1..0..2..1....2..1..2..2....1..0..1..2....2..0..1..2....0..1..1..1

..0..1..2..0....2..0..2..1....0..2..2..2....0..0..2..2....0..2..1..2

..1..0..2..1....2..1..2..2....0..1..2..1....2..0..1..2....1..0..2..2

CROSSREFS

Sequence in context: A252435 A045941 A268588 * A281561 A184193 A218650

Adjacent sequences:  A251459 A251460 A251461 * A251463 A251464 A251465

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 02 2014

STATUS

approved

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Last modified October 20 22:22 EDT 2021. Contains 348119 sequences. (Running on oeis4.)