169219

Properties

Appears in sequences

• Sequence of 3 Pythagorean triangles, each with a leg and hypotenuse prime. The hypotenuse of each triangle is the leg of the next triangle.at n=10A048295
• Starting prime for the smallest prime Pythagorean sequence for n triangles.at n=3A105318
• Numbers n such that m=(n^2+1)/2, p=(m^2+1)/2, q=(p^2+1)/2, and r=(q^2+1)/2 are all prime.at n=2A188547
• a(n) = 8*a(n-1) - 5*a(n-2), with a(0)=0, a(1)=1.at n=7A190977
• Number of nX6 0..2 arrays with every row and column least squares fitting to a zero slope straight line, with a single point array taken as having zero slope.at n=5A223746
• Sequence of 4 Pythagorean triangles, each with a leg and hypotenuse prime. The hypotenuse of each triangle is the leg of the next triangle.at n=0A308635
• Prime numbersat n=15430