243137

Properties

Appears in sequences

• Smallest prime for which 2^n exactly divides the class number h(8p) and X^2 - 2pY^2 = -2 is solvable.at n=6A102267
• Number of (5+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction.at n=15A250760
• Primes of the form prime(i)*prime(i+1)+prime(i+2)*prime(i+3)+...+prime(k-1)*prime(k).at n=39A340465
• Prime numbersat n=21478