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A252062 Number of (n+2)X(5+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4 1
1948, 5610, 25220, 126936, 664938, 3510697, 18508976, 97654871, 516198206, 2730269271, 14438548815, 76352728286, 403819220427, 2135971374401, 11298053010693, 59758367276460, 316078378288805, 1671854651231981 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A252065

LINKS

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

R. H. Hardin, Empirical recurrence of order 98

FORMULA

Empirical recurrence of order 98 (see link above)

EXAMPLE

Some solutions for n=4

..1..2..2..2..2..2..2....1..2..2..1..2..2..2....1..2..2..2..2..2..2

..1..2..2..2..2..1..2....2..2..2..2..2..1..2....2..2..2..2..1..2..2

..1..2..2..2..2..2..2....2..2..2..2..2..2..2....2..2..2..2..2..2..2

..1..2..2..2..2..2..2....2..1..2..2..2..2..1....2..2..2..1..2..2..2

..1..2..2..2..2..2..2....2..2..2..2..2..1..2....1..2..2..2..2..2..2

..1..2..2..1..2..2..2....2..2..2..2..1..2..2....2..2..2..2..2..2..1

CROSSREFS

Sequence in context: A252151 A235003 A223464 * A251843 A249202 A249324

Adjacent sequences:  A252059 A252060 A252061 * A252063 A252064 A252065

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 13 2014

STATUS

approved

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Last modified July 16 09:13 EDT 2020. Contains 335784 sequences. (Running on oeis4.)