a(1) = 1; for n > 1, a(n) is the smallest number == -1 (mod a(n-1)), greater than n, with the same prime signature as n.
A087312
a(1) = 1; for n > 1, a(n) is the smallest number == -1 (mod a(n-1)), greater than n, with the same prime signature as n.
Terms
- a(0) =1a(1) =3a(2) =5a(3) =9a(4) =17a(5) =33a(6) =131a(7) =143055667
External references
- oeis: A087312