A233712 Number of (n+1)X(3+1) 0..4 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 14

1992, 16004, 136960, 1291820, 12203480, 117736088, 1132387344, 10952782784, 105752474712, 1022915229556, 9886172796368, 95612706711092, 924330584621384, 8938735196752324, 86423147934249600, 835715879283995312

Offset

1,1

Comments

Column 3 of A233717

Links

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

R. H. Hardin, Empirical recurrence of order 75

Formula

Empirical recurrence of order 75 (see link above)

Example

Some solutions for n=3
..1..4..1..4....1..0..1..0....3..1..1..1....1..4..4..4....3..2..3..0
..1..3..1..2....1..3..1..3....3..0..3..0....1..3..1..2....0..0..3..1
..4..4..1..4....1..0..0..3....1..1..3..1....1..0..1..4....3..2..3..4
..1..2..1..3....3..3..2..3....2..4..4..1....1..3..1..3....3..0..3..1

Crossrefs

Sequence in context: A034228 A028516 A206363 * A223366 A034588 A233935

Adjacent sequences: A233709 A233710 A233711 * A233713 A233714 A233715

Keyword

nonn

Author

R. H. Hardin, Dec 15 2013

Status

approved