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

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =7a(6) =8a(7) =11a(8) =15a(9) =19a(10) =21a(11) =29a(12) =37a(13) =44a(14) =58a(15) =67a(16) =86a(17) =105a(18) =136a(19) =146a(20) =219a(21) =236a(22) =295a(23) =327a(24) =473a(25) =469a(26) =694a(27) =707a(28) =932a(29) =1020