95611230domain: NAppears in sequencesDenominator of Sum_{k=0..n} 1/C(3*n, 3*k).at n=9A100515Triangle read by rows: T(n, k) = v(n, k)*((1/v(n, k)) mod prime(k)), where v(n, k) = (Product_{j=1..n} prime(j))/prime(k), n >= 1, 1 <= k <= n.at n=39A240673