Antidiagonal sums of A321396.

Terms

a(0) =0a(1) =1a(2) =1a(3) =2a(4) =2a(5) =5a(6) =5a(7) =13a(8) =15a(9) =37a(10) =45a(11) =116a(12) =142a(13) =371a(14) =475a(15) =1226a(16) =1610a(17) =4175a(18) =5561a(19) =14454a(20) =19574a(21) =50743a(22) =69725a(23) =180503a(24) =250777a(25) =648541a(26) =910317a(27) =2349582a(28) =3329020a(29) =8575583