37691

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 2x + 9.at n=19A023306
• Primes that remain prime through 5 iterations of function f(x) = 2x + 9.at n=4A023334
• Denominators of continued fraction convergents to sqrt(417).at n=11A041793
• First term of weak prime sextet: p(m+1)-p(m) < p(m+2)-p(m+1) < p(m+3)-p(m+2) < p(m+4)-p(m+3) < p(m+5)-p(m+4).at n=13A054828
• Home primes whose homeliness is 5.at n=21A133964
• a(n) = 25*n^2 + 15*n + 1021.at n=38A214732
• Numbers n such that (16^n + 15^n)/31 is prime.at n=5A227170
• Primes of the form 6k - 1 preceding the first-occurrence gaps in A334543.at n=15A334544
• Primes p such that p*p! + 1 is also prime.at n=9A346167
• a(0) = 1, a(n) = harmonic_mean(a(n-1), n), where harmonic_mean(p, q) = 2/(1/p + 1/q); denominators.at n=10A353251
• Number of ways to partition digits 0-9 into signed terms in decreasing absolute value order with sum n.at n=26A389952
• Prime numbersat n=3991