Antidiagonal sums of A175105.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =9a(6) =17a(7) =34a(8) =71a(9) =153a(10) =337a(11) =755a(12) =1713a(13) =3925a(14) =9064a(15) =21065a(16) =49213a(17) =115477a(18) =271961a(19) =642495a(20) =1521899a(21) =3613189a(22) =8595037a(23) =20480600a(24) =48874131a(25) =116781789a(26) =279358063a(27) =668925263a(28) =1603145325a(29) =3845056065