109538

Appears in sequences

• a(n) = n * (6*n^2 + 6*n + 1).at n=25A094421
• Numbers k such that 2*prime(k)+1, 2*prime(k+1)+1 and 2*prime(k+2)-1 are also consecutive primes.at n=17A103851
• Numerator coefficients for generators of lattice path enumeration square array A111910.at n=46A140136
• Number of ways to place 2n rooks on n X n board, 2 rooks in each row and each column, multiple rooks in a cell allowed, and exactly 3 rooks below the main diagonal.at n=4A260575
• Triangle of generalized Eulerian numbers T(n,k) = <n,k>_2 read by rows, n >= 1, 0 <= k < 2*n.at n=39A269742
• Triangle of generalized Eulerian numbers T(n,k) = <n,k>_2 read by rows, n >= 1, 0 <= k < 2*n.at n=45A269742
• Numbers k such that 128 * 3^k - 1 is prime.at n=33A384228