Row sums of A238498.

Terms

a(0) =1a(1) =2a(2) =5a(3) =10a(4) =22a(5) =38a(6) =110a(7) =178a(8) =378a(9) =698a(10) =1766a(11) =2618a(12) =7442a(13) =11006a(14) =26482a(15) =58226a(16) =123698a(17) =178310a(18) =502490a(19) =719802a(20) =1814954a(21) =3737154a(22) =8601674a(23) =11944562a(24) =33535586a(25) =54001022a(26) =120654206a(27) =217935362a(28) =518197346a(29) =718356542