2642885282domain: NAppears in sequencesa(0) = 1, a(1) = 2, a(n) = 4*a(n-1) - a(n-2).at n=17A001075Related to Bernoulli numbers.at n=17A002316a(n) = 14*a(n-1) - a(n-2); a(0) = a(1) = 2.at n=9A094347Denominators of the other-side convergents to sqrt(3).at n=33A259592Numerators of the other-side convergents to sqrt(3).at n=32A259593