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A251817 Number of (n+2)X(6+2) 0..2 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime 1
3349, 9040, 62457, 409196, 2670355, 17562309, 115183429, 755607816, 4967204967, 32613907072, 214022771740, 1405186467947, 9227158423777, 60580408167779, 397722666715162, 2611240940819645, 17144272724693792, 112560751779945326 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A251819

LINKS

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

R. H. Hardin, Empirical recurrence of order 74

FORMULA

Empirical recurrence of order 74 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A204884 A204880 A151601 * A216488 A203782 A206978

Adjacent sequences:  A251814 A251815 A251816 * A251818 A251819 A251820

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 09 2014

STATUS

approved

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Last modified November 21 06:00 EST 2019. Contains 329350 sequences. (Running on oeis4.)