A convolution triangle of numbers obtained from A036083.

Terms

a(0) =1a(1) =15a(2) =1a(3) =175a(4) =30a(5) =1a(6) =1750a(7) =575a(8) =45a(9) =1a(10) =15750a(11) =8750a(12) =1200a(13) =60a(14) =1a(15) =131250a(16) =114625a(17) =24375a(18) =2050a(19) =75a(20) =1a(21) =1031250a(22) =1347500a(23) =414750a(24) =52000a(25) =3125a(26) =90a(27) =1a(28) =7734375a(29) =14575000