Numbers k such that the sum of iterations of the alternating sum of divisors function A071324 starting from k is equal to 2*k.
A333263
Numbers k such that the sum of iterations of the alternating sum of divisors function A071324 starting from k is equal to 2*k.
Terms
- a(0) =5a(1) =447a(2) =700a(3) =3122a(4) =20649a(5) =25816a(6) =70221a(7) =205701a(8) =408624a(9) =2574176a(10) =3827656a(11) =4753563a(12) =12129928a(13) =118200807
External references
- oeis: A333263