Eigentriangle, row sums = A006318.

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =1a(5) =2a(6) =11a(7) =3a(8) =2a(9) =6a(10) =45a(11) =11a(12) =6a(13) =6a(14) =22a(15) =197a(16) =45a(17) =22a(18) =18a(19) =22a(20) =90a(21) =903a(22) =197a(23) =90a(24) =66a(25) =66a(26) =90a(27) =394a(28) =4279a(29) =903