a(n) = the unique number k such that T(p + n) == k mod p for all primes p, where T(n) = A000798(n) = number of topologies on n points.
A265042
a(n) = the unique number k such that T(p + n) == k mod p for all primes p, where T(n) = A000798(n) = number of topologies on n points.
Terms
- a(0) =2a(1) =7a(2) =51a(3) =634a(4) =12623
External references
- oeis: A265042