A252511 - OEIS

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A252511

Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 2 5 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 2 5 6 or 7

5508, 25197, 83016, 188123, 505129, 1629431, 5219625, 16419574, 50479820, 156986808, 499609193, 1549264396, 4847196904, 15542087497, 48295697412, 152218972165, 493330608947, 1537042878541, 4885894517798, 16034397747482

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

OFFSET

1,1

COMMENTS

Column 5 of A252514

LINKS

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

R. H. Hardin, Empirical recurrence of order 66

FORMULA

Empirical recurrence of order 66 (see link above)

EXAMPLE

Some solutions for n=4

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

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

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

..1..3..1..3..1..3..1....3..1..3..1..3..1..3....1..3..1..3..1..3..1

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

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

CROSSREFS

Sequence in context: A096702 A252621 A234561 * A250876 A165443 A025296

Adjacent sequences: A252508 A252509 A252510 * A252512 A252513 A252514

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 18 2014

STATUS

approved