A251503 Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock summing to 3 4 5 6 7 8 or 9

670690, 464687066, 321542579960, 222571918258598, 154063583681248806, 106642617845371027692, 73817882968740867259470, 51096644852447901613635406, 35369032672430117642615385524

Offset

1,1

Comments

Column 4 of A251507

Links

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

Example

Some solutions for n=1
..0..0..2..3..1....0..0..3..0..1....0..2..2..2..0....0..2..1..0..0
..0..3..0..0..2....3..3..2..3..0....0..3..0..2..1....0..1..3..1..2

Crossrefs

Sequence in context: A162840 A233817 A204887 * A084977 A049499 A068246

Adjacent sequences: A251500 A251501 A251502 * A251504 A251505 A251506

Keyword

nonn

Author

R. H. Hardin, Dec 03 2014

Status

approved