a(n+1) = a(n) + a(floor(n/2)), with a(0)=0, a(1)=1.

Terms

a(0) =0a(1) =1a(2) =1a(3) =2a(4) =3a(5) =4a(6) =5a(7) =7a(8) =9a(9) =12a(10) =15a(11) =19a(12) =23a(13) =28a(14) =33a(15) =40a(16) =47a(17) =56a(18) =65a(19) =77a(20) =89a(21) =104a(22) =119a(23) =138a(24) =157a(25) =180a(26) =203a(27) =231a(28) =259a(29) =292