40083

Appears in sequences

• Numbers n such that prime(n) mod n <= 10.at n=57A022465
• Numbers k such that prime(k) == 5 (mod k).at n=9A023147
• Numbers k that divide the average of prime(k-1) and prime(k+1).at n=9A066828
• Numbers k such that phi(prime(k) + 1) == 0 (mod k).at n=19A067732
• 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=17A072610
• Number of solutions to x*frac[p(x)/x]<=Log[n] or A004648(n)<=Log[n].at n=32A099641
• Numbers k such that prime(k + 1) == 7 (mod k).at n=13A105421
• Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-1111-0100 pattern in any orientation.at n=10A146374
• Integers n such that prime(n-1) + prime(n+1) is a multiple of n.at n=13A260989
• Numbers n such that prime(n) + prime(n+1) is divisible by 2n + 1.at n=4A278693
• Numbers k such that A068902(k+1) <= A068902(k).at n=6A283053