Number of partitions lambda of n that satisfy gcd(lambda_i, n-1) = 1 for all i.

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =3a(5) =7a(6) =3a(7) =15a(8) =7a(9) =17a(10) =8a(11) =58a(12) =7a(13) =103a(14) =18a(15) =45a(16) =33a(17) =316a(18) =15a(19) =513a(20) =36a(21) =180a(22) =78a(23) =1317a(24) =31a(25) =1169a(26) =148a(27) =750a(28) =143a(29) =4779