Let pi be an unrestricted partition of n with the summands written as binary numbers; a(n) is the number of such partitions with an even number of binary ones.

A102425

Let pi be an unrestricted partition of n with the summands written as binary numbers; a(n) is the number of such partitions with an even number of binary ones.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =2a(4) =2a(5) =4a(6) =6a(7) =6a(8) =12a(9) =16a(10) =20a(11) =28a(12) =40a(13) =48a(14) =69a(15) =91a(16) =111a(17) =150a(18) =197a(19) =238a(20) =319a(21) =398a(22) =493a(23) =634a(24) =792a(25) =968a(26) =1226a(27) =1510a(28) =1846a(29) =2293

External references