82217

Properties

Appears in sequences

• Primes of the form x^2 + y^2 + z, where x, y and z are three successive numbers.at n=30A095697
• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1100-0100-0111 pattern in any orientation.at n=16A146441
• Primes p such that 10*p-1, 10*p-3, 10*p-7 and 10*p-9 are all prime.at n=24A243408
• Prime-indexed primes q such that prime(q)-q-1 is a prime indexed prime.at n=23A318751
• Numbers m such that m = p^2 + k^2, with p > 0, where p = A007954(m) = the product of digits of m.at n=34A334557
• Lowest prime p in a ladder of 4 consecutive primes p, p+2, p+6, p+14.at n=30A372247
• Prime numbersat n=8039