A triangle related to the GF(z) formulas of the rows of the ED3 array A167572.

Terms

a(0) =1a(1) =1a(2) =5a(3) =3a(4) =14a(5) =23a(6) =15a(7) =81a(8) =73a(9) =167a(10) =105a(11) =660a(12) =414a(13) =804a(14) =1473a(15) =945a(16) =6825a(17) =2850a(18) =7578a(19) =7629a(20) =16413a(21) =10395a(22) =85050a(23) =19425a(24) =99420a(25) =61389a(26) =111882a(27) =211479a(28) =135135a(29) =1237005