Triangle of coefficients of a polynomial sequence related to the Morgan-Voyce polynomials A085478.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =2a(6) =1a(7) =9a(8) =12a(9) =4a(10) =1a(11) =16a(12) =40a(13) =32a(14) =8a(15) =1a(16) =25a(17) =100a(18) =140a(19) =80a(20) =16a(21) =1a(22) =36a(23) =210a(24) =448a(25) =432a(26) =192a(27) =32a(28) =1a(29) =49