3439853569domain: NAppears in sequencesa(n) = n*12^n + 1.at n=8A064750Number of terms of A293630 at stage n.at n=27A291481a(n) is the least prime of the form 2^j*3^k + 1, j > 0, k > 0, j + k = n. a(n) = 0 if no such prime exists.at n=25A336773