287281

Properties

Appears in sequences

• Primes of the form 2*p^2 - 1, where p is prime.at n=27A092057
• Primes of the form 648*k^2 + 72*k + 1.at n=6A154510
• a(n) = 648*n^2 + 72*n + 1.at n=20A154515
• Triangle T(n, k) = n! * binomial(n, k)^2 - n! + 1, read by rows.at n=24A174689
• Prime lucky numbers that are palindromic in base 2.at n=22A244114
• Primes p such that p == 1 (mod A001414(p-1)) and p == 1 (mod A001414(p+1)).at n=22A339181
• Prime numbers whose base-2 representation is a "nested" palindrome.at n=16A373581
• Sum of the legs of the unique primitive Pythagorean triple whose inradius is A000217(n) and such that its long leg and its hypotenuse are consecutive natural numbers.at n=27A383834
• Prime numbersat n=25017