24517

Properties

Appears in sequences

• Primes p such that q = 4p^2 + 1 and r = 4q^2 + 1 are also prime.at n=32A122424
• Prime numbers p such that p +- ((p-1)/6) are primes.at n=26A137724
• Prime p of the form a^b + c^d = p, where a, b, c, d are also primes.at n=30A164074
• Prime p1 of the form a^b + c^d = p1, where a, b, c, d are primes and a + b + c + d = p2, where p2 (A164076) is also prime.at n=16A164075
• Prime p1 of the form a^b + c^d = p1, where a, b, c, d are primes and a + b + c + d = p2, where p2 (A164078) is prime and conc(abcd) = p3 (concatenation of a, b, c , d) is also prime (A164079).at n=1A164077
• Sum of absolute values of real and imaginary parts of the coefficients in the expansion of 1 / (1 - x - I*x^2), where I^2=-1.at n=28A218137
• Primes of the form x^3 + 2*y^3, with nonnegative x and y.at n=38A219559
• Smallest of four consecutive primes whose average is a triangular number.at n=21A226155
• Position of 2^n in A070003.at n=20A244985
• Primes of form n^2 + 6561.at n=14A256837
• Primes p such that prime(p)^2 - 2 = prime(q) for some prime q.at n=22A261354
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 513", based on the 5-celled von Neumann neighborhood.at n=28A272703
• Numbers that are the sum of eight fourth powers in exactly nine ways.at n=36A345841
• Primes such that the next 10 prime gaps are all distinct.at n=3A372550
• Primes which can be written as 2^a + p^b where a > 1, p is an odd prime and b > 1 is odd.at n=38A392680
• Prime numbersat n=2720