188164domain: NAppears in sequencesG.f.: 1/B(x) where B(x) = g.f. for A072964.at n=24A073420Numbers k such that R_k + 40 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=19A256725Number of ways to write n as an ordered sum of 9 primes.at n=27A340965