37657

Properties

Appears in sequences

• Primes p whose period of reciprocal equals (p-1)/9.at n=31A056214
• Smallest number a(n)>a(n-1) such that T(a(n-1))+T(a(n))=T(m) for some m, a(1)=3; T(i) are the triangular numbers.at n=34A072522
• a(1)=a(2)=1; a(n) = a(n-2) + a(n-1) + (number of terms from among {a(1), a(2), ..., a(n-1)} which are prime).at n=21A128609
• Primes p such that p + 4, p + 16, p + 64, p + 256 and p + 1024 are all semiprimes.at n=33A241493
• The number of P-positions in the game of Nim with up to 4 piles, allowing for piles of zero, such that the number of objects in each pile does not exceed n.at n=36A241522
• a(n) is the smallest start of a run of exactly n consecutive primes such that the sum of the digits of each prime is composite.at n=12A241525
• Strong (2,3,5)-primes (see comments).at n=25A262727
• Primes 8k + 1 preceding the maximal gaps in A269424.at n=10A269425
• Least k such that f(k) < 0, where f(1) = n and f(k) = f(k-1)*e^(1/k) - 1 for k > 1.at n=15A333342
• Prime numbersat n=3989