A252064 - OEIS

A252064

Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4

10836, 43618, 299027, 2292363, 18508976, 151165482, 1229012088, 9989905340, 81383095801, 663247905243, 5404259846759, 44037554191519, 358893036197953, 2925065465729381, 23840188492575250, 194301900497527943

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

OFFSET

1,1

COMMENTS

Column 7 of A252065

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..198

EXAMPLE

Some solutions for n=2

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

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

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

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

CROSSREFS

Sequence in context: A235254 A237190 A065321 * A295993 A185517 A250954

Adjacent sequences: A252061 A252062 A252063 * A252065 A252066 A252067

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 13 2014

STATUS

approved