Quotient (A003961(k)-sigma(k)) / (2*k-A003961(k)) computed for those k for which this quotient is an integer, where A003961 is fully multiplicative with a(prime(i)) = prime(i+1).
A379217
Quotient (A003961(k)-sigma(k)) / (2*k-A003961(k)) computed for those k for which this quotient is an integer, where A003961 is fully multiplicative with a(prime(i)) = prime(i+1).
Terms
- a(0) =0a(1) =0a(2) =1a(3) =-2a(4) =-1a(5) =1a(6) =-3a(7) =18a(8) =9a(9) =-1a(10) =17a(11) =3a(12) =1a(13) =-35a(14) =-7a(15) =-15a(16) =57a(17) =-1a(18) =339a(19) =-381a(20) =3a(21) =-7a(22) =-969a(23) =-1213a(24) =-1a(25) =3a(26) =3a(27) =-979a(28) =419a(29) =29
External references
- oeis: A379217