A236732 Number of (n+1)X(3+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock equal

1497, 17583, 203517, 2541745, 31912919, 411993973, 5366177421, 70784178483, 939861919575, 12559245518677, 168505627715029, 2268388887274823, 30606617041420087, 413697241620856373, 5598803384835351689

Offset

1,1

Comments

Column 3 of A236737

Links

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

R. H. Hardin, Empirical recurrence of order 49

Formula

Empirical recurrence of order 49 (see link above)

Example

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

Crossrefs

Sequence in context: A345527 A345781 A328974 * A184078 A098191 A253509

Adjacent sequences: A236729 A236730 A236731 * A236733 A236734 A236735

Keyword

nonn

Author

R. H. Hardin, Jan 30 2014

Status

approved