52535domain: NAppears in sequencesG.f.: Sum_{n>=0} x^n/(1 - x^2*(1+x)^n).at n=17A340775First occurrence of n in A345079, or -1 if n does not occur in A345079.at n=35A345080Tetraprimes (or products of exactly four distinct prime numbers) that are the sum of two successive tetraprimes.at n=23A380348