117991

Properties

Appears in sequences

• Quintan primes: p = (x^5 + y^5)/(x + y).at n=33A002650
• a(n) = n^4 + 2*n^3 + 4*n^2 + 3*n + 1 = ((n+1)^5+n^5) / (2*n+1).at n=18A072025
• Primes p such that q-p = 42, where q is the next prime after p.at n=24A134120
• a(n) is the sum of the smallest parts of all partitions of n that do not contain 1 as a part.at n=52A182708
• Primes p such that A008472(p-1) = A008472(p+1), where A008472 = sum of distinct primes dividing n.at n=9A203182
• Smallest of three consecutive primes whose sum is a triangular number.at n=17A226148
• Primes of the form m = 7^i + 7^j - 1, where i > j >= 0.at n=3A239717
• Centered 18-gonal (or octadecagonal) primes.at n=39A264825
• Numbers k such that (14*10^k + 61)/3 is prime.at n=25A285378
• Primes that can be generated by the concatenation in base 8, in ascending order, of two consecutive integers read in base 10.at n=36A287310
• Number of positive special sums of integer partitions of n.at n=34A301854
• Prime numbersat n=11135