A089300 - OEIS

A089300

Number of planar partitions of n (A000219) that are non-squashing along rows and down columns (cf. A018819).

1, 1, 3, 4, 9, 13, 25, 33, 56, 76, 122, 170, 264, 360, 538, 707, 1002, 1332, 1853, 2409, 3294

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OFFSET

0,3

LINKS

N. J. A. Sloane and J. A. Sellers, On non-squashing partitions, Discrete Math., 294 (2005), 259-274.

EXAMPLE

E.g. a(4) = 9:

4.31.3.22.2.211.21..2..11

.....1....2.....1...1..11

....................1....

CROSSREFS

KEYWORD

nonn,more

AUTHOR

EXTENSIONS

More terms from Wouter Meeussen, Dec 30 2003

STATUS

approved