46461domain: NAppears in sequencesNumbers k such that 5*10^k + 77 is prime.at n=26A27445611-gonal numbers which are products of three distinct primes.at n=25A354446E.g.f. satisfies A(x) = exp( x * A(x) / (1-x)^2 ) / (1-x).at n=5A377599