-3596domain: ZAppears in sequencesReversion of (1 + g.f. for primes).at n=7A007296a(n+3) = 2a(n+2) - 3a(n+1) + 2a(n); a(0) = 1, a(1) = 1, a(2) = 0.at n=30A105578a(n) = 3*a(n-1) - 5*a(n-2), with a(0)=0, a(1)=1.at n=15A190959