82780

Appears in sequences

• Numbers k such that 2*3^k + 1 is prime.at n=32A003306
• Number of ways to place 3 nonattacking knights on a 3 X n board.at n=27A172212
• Numbers n such that 2*3^n + 1 is a primitive prime factor of 10^3^n - 1.at n=6A176351
• Number of North-East lattice paths from (0,0) to (n,n) that do not cross the diagonal y = x at any even point (2*k,2*k).at n=10A376075