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A251833 Number of (n+2)X(4+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 3 4 5 or 6 1
97316, 2298772, 60982362, 1464435968, 35836727866, 887220145536, 21825045338978, 537093052578680, 13229795888571514, 325764522080983072, 8021252037010793838, 197519171414099168890, 4863726219033759694608 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A251836

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A253618 A205042 A184494 * A145659 A022214 A237509

Adjacent sequences:  A251830 A251831 A251832 * A251834 A251835 A251836

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 09 2014

STATUS

approved

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Last modified October 27 10:47 EDT 2021. Contains 348274 sequences. (Running on oeis4.)