Antidiagonal sums of the array A389800.

Terms

a(0) =0a(1) =3a(2) =5a(3) =22a(4) =60a(5) =190a(6) =552a(7) =1625a(8) =4683a(9) =13430a(10) =38170a(11) =107868a(12) =303120a(13) =847887a(14) =2361905a(15) =6555670a(16) =18137112a(17) =50034010a(18) =137667768a(19) =377899685a(20) =1035119415a(21) =2829792758a(22) =7722173110a(23) =21038135352a(24) =57228544800a(25) =155455026075a(26) =421722802397