385939

Properties

Appears in sequences

• Eight white kings and one red king on a 3 X 3 chessboard. G.f.: (1 + x)/(1 - 3*x - 5*x^2).at n=9A179606
• a(n) is the smallest prime q such that 2*q^k - 1 is prime for k = 1, 2, ..., n.at n=4A229627
• Prime numbersat n=32757