cp's OEIS Frontend

A096966 Triangle (read by rows) in which the number of entries in a row only increases by 1 every other row, the first column and the 'diagonal' is set to all 1's and a(i,j) = a(i-1,j) + a(i-1,j-1) + a(i-2,j-1) + a(i-3,j-1) for other entries.

%I A096966 #4 Mar 31 2012 14:11:11
%S A096966 1,1,1,1,1,4,1,7,1,1,10,13,1,13,34,1,1,16,64,49,1,19,103,160,1,1,22,
%T A096966 151,361,211,1,25,208,679,781,1,1,28,274,1141,1981,994,1,31,349,1774,
%U A096966 4162,3967,1,1,34,433,2605,7756,10891,4963,1,37,526,3661,13276,24790,20815,1
%N A096966 Triangle (read by rows) in which the number of entries in a row only increases by 1 every other row, the first column and the 'diagonal' is set to all 1's and a(i,j) = a(i-1,j) + a(i-1,j-1) + a(i-2,j-1) + a(i-3,j-1) for other entries.
%C A096966 The 2nd column is A016777 (3n+1), the 3rd column is A081271 (Vertical of triangular spiral in A051682.)
%K A096966 nonn,tabf
%O A096966 0,6
%A A096966 _Gerald McGarvey_, Aug 18 2004