Denominators in expansion of (1-x)^{-1/4} are 2^a(n).

Terms

a(0) =0a(1) =2a(2) =5a(3) =7a(4) =11a(5) =13a(6) =16a(7) =18a(8) =23a(9) =25a(10) =28a(11) =30a(12) =34a(13) =36a(14) =39a(15) =41a(16) =47a(17) =49a(18) =52a(19) =54a(20) =58a(21) =60a(22) =63a(23) =65a(24) =70a(25) =72a(26) =75a(27) =77a(28) =81a(29) =83