Ratio-dependent insertion sequence I(0.36704) (see the link below).

Terms

a(0) =1a(1) =3a(2) =11a(3) =30a(4) =109a(5) =297a(6) =1079a(7) =2940a(8) =10681a(9) =29103a(10) =105731a(11) =288090a(12) =1046629a(13) =2851797a(14) =10360559a(15) =28229880a(16) =102558961a(17) =279447003a(18) =1015229051a(19) =2766240150a(20) =10049731549a(21) =27382954497a(22) =99482086439a(23) =271063304820a(24) =984771132841