154877domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 5n^2 - 3.at n=19A201785Triangle, read by rows, each row n being defined by g.f. Product_{k=1..n} (k + x + 2*k*x^2), for n >= 0.at n=42A322891a(n) = [x^n] Product_{k=1..n} (k + x + 2*k*x^2), for n >= 0.at n=6A322892Prime numbersat n=14264