Antidiagonal sums of the convolution array A213774.

Terms

a(0) =1a(1) =8a(2) =30a(3) =81a(4) =184a(5) =376a(6) =717a(7) =1304a(8) =2294a(9) =3941a(10) =6656a(11) =11104a(12) =18361a(13) =30168a(14) =49342a(15) =80441a(16) =130840a(17) =212472a(18) =344645a(19) =558600a(20) =904886a(21) =1465293a(22) =2372160a(23) =3839616a(24) =6214129a(25) =10056296a(26) =16273182a(27) =26332449a(28) =42608824a(29) =68944696