2042221

Properties

Appears in sequences

• If the least prime factor of ((prime(k)*prime(k+1))^2 + 1)/2 for k >= 2 is not yet in the sequence, then add it to the sequence.at n=5A077287
• Primes resulting from A087293.at n=3A087294
• Table read by rows: row n is the unique primitive Pythagorean triple (a,b,c) such that a = prime(n)*prime(n+1) and its long leg and hypotenuse are consecutive natural numbers.at n=38A370763
• Prime numbersat n=151860