A224308 Number of nX6 0..2 arrays with diagonals and rows unimodal and antidiagonals nondecreasing

148, 4690, 61953, 562760, 4420701, 33934344, 268379906, 2215451575, 19023816444, 168305254414, 1519045558334, 13877824165049, 127654546150864, 1178500994429585, 10900361047173008, 100920807678845030

Offset

1,1

Comments

Column 6 of A224310

Links

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

R. H. Hardin, Empirical recurrence of order 88

Formula

Empirical recurrence of order 88 (see link above)

Example

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

Crossrefs

Sequence in context: A224188 A223931 A224055 * A224372 A185478 A210159

Adjacent sequences: A224305 A224306 A224307 * A224309 A224310 A224311

Keyword

nonn

Author

R. H. Hardin Apr 03 2013

Status

approved