Number of compositions of n into odd and relatively prime parts.

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =4a(5) =7a(6) =12a(7) =21a(8) =32a(9) =54a(10) =88a(11) =141a(12) =232a(13) =376a(14) =604a(15) =987a(16) =1596a(17) =2576a(18) =4180a(19) =6762a(20) =10932a(21) =17710a(22) =28656a(23) =46347a(24) =75020a(25) =121392a(26) =196384a(27) =317808a(28) =514228a(29) =831978