A228726 - OEIS

%I #7 Sep 01 2013 23:07:46

%S 1,1,1,2,1,1,2,1,2,9,1,1,3,1,3,9,1,5,9,28,1,1,3,1,3,10,1,5,11,28,1,5,

%T 12,28

%N Number a(n) of columns in each row of the irregular triangles in A187800 and A228594.

%e a(9) = 9 because there are 9 elements in the 9th rows of A187800 and A228594.

%K nonn

%O 1,4

%A _Christopher Hunt Gribble_, Aug 31 2013