Number of new terms at stage n in the formation of A030717.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =3a(5) =3a(6) =4a(7) =5a(8) =6a(9) =7a(10) =7a(11) =8a(12) =10a(13) =12a(14) =13a(15) =16a(16) =18a(17) =20a(18) =23a(19) =25a(20) =28a(21) =31a(22) =33a(23) =36a(24) =38a(25) =41a(26) =43a(27) =45a(28) =47a(29) =50