A237845 Number of (n+1)X(3+1) 0..2 arrays with the maximum minus the lower median of every 2X2 subblock equal

1697, 31661, 581994, 11700943, 234481287, 4792713430, 97664853059, 2001409956781, 40948533459224, 839310420597363, 17190911268409065, 352324203188099624, 7218710610899687167, 147935261872175272819

Offset

1,1

Comments

Column 3 of A237850

Links

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

R. H. Hardin, Empirical recurrence of order 70

Formula

Empirical recurrence of order 70 (see link above)

Example

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

Crossrefs

Sequence in context: A235182 A237170 A301985 * A340170 A083610 A020405

Adjacent sequences: A237842 A237843 A237844 * A237846 A237847 A237848

Keyword

nonn

Author

R. H. Hardin, Feb 14 2014

Status

approved