A224352 Number of nX7 0..2 arrays with diagonals and antidiagonals unimodal and rows nondecreasing

36, 1296, 26610, 363392, 3816783, 34697869, 300892325, 2654062881, 24422915139, 233364588801, 2281743365906, 22551656451002, 223794737692968, 2224124508821224, 22127253845604143, 220432254659284132

Offset

1,1

Comments

Column 7 of A224353

Links

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

Example

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

Crossrefs

Sequence in context: A223405 A224267 A223924 * A224194 A224011 A300357

Adjacent sequences: A224349 A224350 A224351 * A224353 A224354 A224355

Keyword

nonn

Author

R. H. Hardin Apr 04 2013

Status

approved