%I #4 Jan 21 2014 12:30:22
%S 1,1,0,1,1,0,1,3,1,0,1,6,7,0,0,1,10,25,10,0,0,1,15,65,75,10,0,0,1,21,
%T 140,315,175,0,0,0,1,28,266,980,1225,280,0,0,0,1,36,462,2520,5565,
%U 3780,280,0,0,0,1,45,750,5670,19425,26145,9100,0,0,0,0,1,55
%N Triangle in A144385 read upwards by columns.
%e Triangle begins:
%e 1
%e 1,0
%e 1,1,0
%e 1,3,1,0
%e 1,6,7,0,0
%e 1,10,25,10,0,0
%e 1,15,65,75,10,0,0
%e 1,21,140,315,175,0,0,0
%Y Column sums give A001680. Cf. A144385.
%K nonn,tabl
%O 0,8
%A _David Applegate_ and _N. J. A. Sloane_, Dec 07 2008
|