Antidiagonal sums of A373005.

Terms

a(0) =1a(1) =2a(2) =6a(3) =10a(4) =20a(5) =41a(6) =84a(7) =162a(8) =324a(9) =637a(10) =1276a(11) =2509a(12) =5018a(13) =9907a(14) =19816a(15) =39202a(16) =78404a(17) =155381a(18) =310764a(19) =616665a(20) =1233330a(21) =2449867a(22) =4899736a(23) =9740685a(24) =19481370a(25) =38754731a(26) =77509464a(27) =154276027a(28) =308552054a(29) =614429671