Generalized sum of divisors function: excess of sum of odd divisors of n over sum of even divisors of n.
A002129
Generalized sum of divisors function: excess of sum of odd divisors of n over sum of even divisors of n.
Terms
- a(0) =1a(1) =-1a(2) =4a(3) =-5a(4) =6a(5) =-4a(6) =8a(7) =-13a(8) =13a(9) =-6a(10) =12a(11) =-20a(12) =14a(13) =-8a(14) =24a(15) =-29a(16) =18a(17) =-13a(18) =20a(19) =-30a(20) =32a(21) =-12a(22) =24a(23) =-52a(24) =31a(25) =-14a(26) =40a(27) =-40a(28) =30a(29) =-24
External references
- oeis: A002129