%I A089300
%S A089300 1,1,3,4,9,13,25,33,56,76,122,170,264,360,538,707,1002,1332,1853,2409,
               3294
%N A089300 Number of planar partitions of n (A000219) that are non-squashing along 
               rows and down columns (cf. A018819).
%H A089300 N. J. A. Sloane and J. A. Sellers, <a href="http://arXiv.org/abs/math.CO/
               0312418">On non-squashing partitions</a>, Discrete Math., 294 (2005), 
               259-274.
%e A089300 E.g. a(4) = 9:
%e A089300 4.31.3.22.2.211.21..2..11
%e A089300 .....1....2.....1...1..11
%e A089300 ....................1....
%Y A089300 Cf. A000219, A000123, A018819, A008763, A001970, A089292.
%Y A089300 Sequence in context: A116552 A124285 A131326 this_sequence A079284 A000624 
               A056514
%Y A089300 Adjacent sequences: A089297 A089298 A089299 this_sequence A089301 A089302 
               A089303
%K A089300 nonn
%O A089300 0,3
%A A089300 N. J. A. Sloane (njas(AT)research.att.com), Dec 25 2003
%E A089300 More terms from Wouter Meeussen (wouter.meeussen(AT)pandora.be), Dec 
               30 2003