A251477 - OEIS

A251477

Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column

2908, 24182, 183485, 1096596, 6216665, 30592799, 146035292, 638001419, 2737224051, 11079334278, 44353044487, 170687762327, 652521483414, 2427683848801, 8998599121783, 32733059851689, 118872959422881

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

OFFSET

1,1

COMMENTS

Column 3 of A251481

LINKS

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

R. H. Hardin, Empirical recurrence of order 99

FORMULA

Empirical recurrence of order 99 (see link above)

EXAMPLE

Some solutions for n=3

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

..0..0..1..1....3..0..1..2....0..1..2..1....0..2..0..3....3..0..1..1

..2..0..2..1....0..0..2..0....0..2..0..2....0..3..2..2....0..2..2..1

..1..2..1..1....2..3..2..3....2..3..2..3....0..2..0..3....3..0..1..1

CROSSREFS

Sequence in context: A254183 A254190 A253795 * A210072 A157183 A054829

Adjacent sequences: A251474 A251475 A251476 * A251478 A251479 A251480

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 02 2014

STATUS

approved