a(0) = 1; for n > 0, a(n) = A000120(n) * a(n-A000120(n)), where A000120(n) is the binary weight of n.

A320008

a(0) = 1; for n > 0, a(n) = A000120(n) * a(n-A000120(n)), where A000120(n) is the binary weight of n.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =4a(6) =4a(7) =6a(8) =6a(9) =12a(10) =12a(11) =18a(12) =24a(13) =36a(14) =54a(15) =72a(16) =72a(17) =144a(18) =144a(19) =216a(20) =288a(21) =432a(22) =648a(23) =864a(24) =1296a(25) =1944a(26) =2592a(27) =3456a(28) =5832a(29) =7776

External references