Number of factorizations of 2^n into factors > 1 with even integer average.

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =4a(5) =5a(6) =7a(7) =8a(8) =11a(9) =14a(10) =14a(11) =20a(12) =27a(13) =31a(14) =41a(15) =47a(16) =57a(17) =75a(18) =95a(19) =102a(20) =155a(21) =170a(22) =195a(23) =239a(24) =327a(25) =331a(26) =483a(27) =517a(28) =617a(29) =740