637319

Properties

Appears in sequences

• Values of transition of A072608(n) from alternating behavior (0,1,0,1,..) into steadily-1 (1,1,1,..) behavior or changing back. Expressing in terms of A072609(n): at n values it switches from steadily 0 into steadily 1 successive values or back.at n=31A072610
• Numbers n such that prime(n) == -2 (mod n).at n=3A092044
• Primes p such that prime(p)+2 = 0 (mod p), where prime(p)=A000040(p) is the p-th prime.at n=2A156149
• Prime values of pi(n) that divide n.at n=13A256394
• Primes p such that p*nextprime(p)+1 and p + nextprime(p)+1 are both perfect squares where nextprime(p) is the smallest prime that is larger than p.at n=39A375912
• Prime numbersat n=51891