56489

Properties

Appears in sequences

• Primes of form a^2+b^2 such that a^4+b^4 and a^8+b^8 are primes.at n=39A182313
• T(n,k)=Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..2 nXk array.at n=37A218592
• Hilltop maps: number of 2Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..2 2Xn array.at n=7A218593
• Primes of the form sigma(k) + product of divisors of k.at n=27A260108
• Numerators of upper primes-only best approximates (POBAs) to Pi; see Comments.at n=17A265810
• Prime numbersat n=5728