A251995 Number of (n+2)X(3+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 4 5 or 7.

43572, 1209382, 38479934, 1231596986, 39474106776, 1265816542694, 40596220326266, 1301978765063776, 41756405884362602, 1339191256678793348, 42949901148550952950, 1377468698325294568476, 44177517778315502196492

Offset

1,1

Comments

Column 3 of A252000

Links

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

R. H. Hardin, Empirical recurrence of order 96

Formula

Empirical recurrence of order 96 (see link above)

Example

Some solutions for n=1
..3..0..0..3..3....0..3..0..3..3....0..3..3..0..3....3..0..0..0..0
..0..0..3..3..0....3..3..0..0..0....1..0..0..0..0....0..3..0..0..0
..3..0..0..3..0....3..0..0..3..3....0..0..0..0..3....3..0..0..0..3

Crossrefs

Sequence in context: A210331 A233690 A205923 * A094493 A342580 A165479

Adjacent sequences: A251992 A251993 A251994 * A251996 A251997 A251998

Keyword

nonn

Author

R. H. Hardin, Dec 12 2014

Status

approved