143097domain: NAppears in sequencesNumber of ballot sequences of length n having exactly one descent.at n=17A241794Integers k such that each of k, k+1, k+2, k+4, k+5, k+6 is the product of two distinct primes.at n=1A242804Numbers k such that (14*10^k + 73)/3 is prime.at n=35A271340