Numbers k such that sum of first k primorials (A143293) is divisible by k.
A225727
Numbers k such that sum of first k primorials (A143293) is divisible by k.
Terms
- a(0) =1a(1) =3a(2) =17a(3) =51a(4) =967a(5) =2901a(6) =16439a(7) =49317a(8) =147951a(9) =1331559
External references
- oeis: A225727