46021

Properties

Appears in sequences

• Quintan primes: p = (x^5 - y^5)/(x - y).at n=20A002649
• Primes that remain prime through 4 iterations of function f(x) = 2x + 9.at n=23A023306
• Primes that remain prime through 5 iterations of function f(x) = 2x + 9.at n=6A023334
• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 28.at n=7A031616
• Smallest prime in n-th shell of prime spiral.at n=35A053998
• Euler transform of A000960.at n=12A099065
• Prime numbers p such that p+6, p^2+6^2, p^4+6^4 are all primes.at n=16A107441
• Primes p such that p^2 divides 17^(p-1) - 1.at n=2A128668
• Positions of 11's in A131744.at n=22A133152
• Number of n X 2 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=32A240789
• Smallest Wieferich prime (> sqrt(n)) in base n.at n=16A247072
• Primes p such that p^2 is the concatenation of two k-digit primes where k is half the length of p^2.at n=37A248046
• Primes p for which exactly five bases b with 1 < b < p exist such that p is a base b Wieferich prime.at n=16A255208
• Smallest base-b Wieferich prime larger than b, where b = prime(n).at n=6A255838
• Numbers n such that there is precisely 1 group of order n, 2 of order n + 1 and 3 of order n + 2.at n=28A296024
• Primes p such that p is the largest member of a Wieferich tuple.at n=27A297846
• Lucky primes k such that k+6 is also a lucky prime.at n=43A309381
• Prime numbersat n=4762