Dirichlet convolution of A000027 (identity function) with the Dirichlet inverse of A326042, where A326042(n) = A064989(sigma(A003961(n))).
A349625
Dirichlet convolution of A000027 (identity function) with the Dirichlet inverse of A326042, where A326042(n) = A064989(sigma(A003961(n))).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =-8a(4) =4a(5) =1a(6) =5a(7) =2a(8) =-22a(9) =4a(10) =6a(11) =-8a(12) =9a(13) =5a(14) =4a(15) =50a(16) =14a(17) =-22a(18) =17a(19) =-32a(20) =5a(21) =6a(22) =17a(23) =2a(24) =-13a(25) =9a(26) =20a(27) =-40a(28) =28a(29) =4
External references
- oeis: A349625