134056domain: NAppears in sequencesa(n) = 6*a(n-1) + 10*a(n-2), with a(0)=0, a(1)=1.at n=7A190005Numbers k such that 397*2^k+1 is prime.at n=33A323043G.f. = Phi^4*F^2, where Phi = g.f. for A028930, F = g.f. for A028959.at n=20A328533