60657

Appears in sequences

• Triangle read by rows: Eulerian numbers of type B, T(n,k) (1 <= k <= n) given by T(n, 1) = T(n,n) = 1, otherwise T(n, k) = (2*n - 2*k + 1)*T(n-1, k-1) + (2*k - 1)*T(n-1, k).at n=30A060187
• Triangle read by rows: Eulerian numbers of type B, T(n,k) (1 <= k <= n) given by T(n, 1) = T(n,n) = 1, otherwise T(n, k) = (2*n - 2*k + 1)*T(n-1, k-1) + (2*k - 1)*T(n-1, k).at n=33A060187
• A column and diagonal of A060187 (k=3).at n=5A060189
• Triangle read by rows: T(n, k) = (-1)^(n+k) * A060187(n+1, k+1).at n=33A138076
• Triangle T(n,k) = A060187(n+2,k+2), 1<=k<=n.at n=16A154817
• Triangle T(n,k) = A060187(n+2,k+2), 1<=k<=n.at n=19A154817
• Triangle: A060187 with interspersed zeros.at n=53A158781
• Triangle: A060187 with interspersed zeros.at n=59A158781
• Semiprimes p such that next semiprime after p is p+20.at n=16A217335