44055

Appears in sequences

• The Wiener index of the P_3 X P_n grid, where P_m is the path graph on m nodes. The Wiener index of a connected graph is the sum of distances between all unordered pairs of nodes in the graph.at n=29A180569
• Numbers k such that prime(k) * 2^k - 1 is prime.at n=22A239741
• Number of length n permutations avoiding (132,{2},{}) and (123,{},{1}).at n=12A249563
• Primitive terms of A259850.at n=41A361363