64192domain: NAppears in sequencesTransform of 2^n by the aerated Catalan triangle A165408.at n=13A165409a(n) = coefficient of sqrt(2) in the expansion of (1 + sqrt(2) + sqrt(3))^n.at n=9A188571Numbers k such that (44*10^k - 233)/9 is prime.at n=21A294128