Inverse Möbius transform of A003961; a(n) = sigma(A003961(n)), where A003961 shifts the prime factorization of n one step towards the larger primes.
A003973
Inverse Möbius transform of A003961; a(n) = sigma(A003961(n)), where A003961 shifts the prime factorization of n one step towards the larger primes.
Terms
- a(0) =1a(1) =4a(2) =6a(3) =13a(4) =8a(5) =24a(6) =12a(7) =40a(8) =31a(9) =32a(10) =14a(11) =78a(12) =18a(13) =48a(14) =48a(15) =121a(16) =20a(17) =124a(18) =24a(19) =104a(20) =72a(21) =56a(22) =30a(23) =240a(24) =57a(25) =72a(26) =156a(27) =156a(28) =32a(29) =192
External references
- oeis: A003973