Ninth diagonal of triangle A064094.

Terms

a(0) =1a(1) =1430a(2) =95235a(3) =1338790a(4) =9137549a(5) =41260086a(6) =142648495a(7) =409186310a(8) =1022586105a(9) =2298558934a(10) =4750427771a(11) =9170347110a(12) =16730290885a(13) =29104970870a(14) =48618847719a(15) =78419396806a(16) =122678791025a(17) =186826162710