67316

Appears in sequences

• Least number 2k such that p^2 divides the numerator of the Bernoulli number B(2k), where p is the n-th irregular prime, A000928(n).at n=14A092681
• T(n,k) = 4*A046802(n,k) - 2*A008518(n,k) - A007318(n,k), triangle read by rows (0 <= k <= n).at n=39A168291
• T(n,k) = 4*A046802(n,k) - 2*A008518(n,k) - A007318(n,k), triangle read by rows (0 <= k <= n).at n=41A168291
• Augmentation of the triangle A193596. See Comments.at n=51A193597