220447

Properties

Appears in sequences

• a(n) is the smallest prime p beginning with 2n such that the difference between p and the next prime is 2n.at n=10A162357
• Primes of the form 2*p^2 + 4*p + 1, where p is also prime.at n=24A164041
• Number of nondecreasing -n..n vectors of length 5 whose dot product with some nondecreasing -n..n vector equals 5.at n=13A226413
• Number of possible chess games at the end of the n-th ply starting without queens.at n=4A285873
• Prime numbersat n=19651