132026domain: NAppears in sequencesA generalized partition function.at n=23A002600a(n) = 2*a(n-1) - a(n-4) for n >= 4, where a(0) = 2, a(1) = 4, a(2) = 6, a(3) = 10, a(4) = 16.at n=19A288599