251709

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=22A072610
• Numbers n such that prime(n) == -5 (mod n).at n=22A092047
• Numbers k such that floor(prime(k)/k) < floor(prime(k+1)/(k+1)).at n=21A308082