504605

Appears in sequences

• Binomial transform of poly-Bernoulli numbers A027649.at n=9A085350
• First subdiagonal of triangular array T: T(j,1) = 1 for ((j-1) mod 6) < 3, else 0; T(j,k) = T(j-1,k-1) + T(j-1,k) for 2 <= k <= j.at n=20A131023
• Antidiagonal sums of triangular array T: T(j,1) = 1 for ((j-1) mod 6) < 3, else 0; T(j,k) = T(j-1,k-1) + T(j-1,k) for 2 <= k <= j.at n=38A131025
• a(n) = 2^n - A108411(n).at n=19A167936