Antidiagonal sums of the convolution array A213576.

Terms

a(0) =1a(1) =4a(2) =13a(3) =34a(4) =80a(5) =174a(6) =359a(7) =712a(8) =1371a(9) =2580a(10) =4768a(11) =8684a(12) =15629a(13) =27852a(14) =49225a(15) =86390a(16) =150704a(17) =261530a(18) =451795a(19) =777360a(20) =1332791a(21) =2277864a(22) =3882048a(23) =6599064a(24) =11191705a(25) =18940564a(26) =31992709a(27) =53943562a(28) =90807056a(29) =152631750