40096

Appears in sequences

• Triangle, read by rows, where T(n,k) is the coefficient of q^(nk+k) in the squared q-factorial of n+1.at n=17A129274
• Triangle, read by rows, where T(n,k) is the coefficient of q^(nk+k) in the squared q-factorial of n+1.at n=18A129274
• Triangle read by rows: T(n,k) = 2^k*A235998(n,k), n>=1, k>=1.at n=38A235999
• Number of length 2+3 0..n arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms.at n=14A249708
• a(n) is the sum of the Wieferich and Wall-Sun-Sun residues of prime(n).at n=40A339639
• Numbers k such that (sigma(k) - k)^(sigma(k) - k) == k (mod sigma(k)), where sigma = A000203.at n=27A375790