19932

Appears in sequences

• Numbers that are the sum of 2 positive 5th powers.at n=25A003347
• Numbers that are the sum of at most 2 positive 5th powers.at n=33A004842
• Numbers k such that 87*2^k+1 is prime.at n=31A032393
• a(n) = 5^n + 7^n.at n=5A074616
• Numbers of form x^5 + y^5, x,y > 0 and x <> y.at n=19A088703
• Divide primes in groups with 2n elements and add together.at n=12A109726
• Numbers that are sums of fifth powers of two distinct primes.at n=5A130292
• Sum of fifth powers of two consecutive primes.at n=2A133536
• Numbers of the form 5^j + 7^k, for j and k >= 0.at n=40A226818
• Numbers that are sums of two coprime positive fifth powers.at n=16A228542
• Positive integers m with 2^(m-1)*phi(m) - 1 prime, where phi(.) is Euler's totient function.at n=30A236375
• Sum of the even singletons in all partitions of n (n>=0). A singleton in a partition is a part that occurs exactly once.at n=27A276425
• Partial sums of A033617.at n=34A299903
• Sum of the 5th powers of primes dividing n.at n=34A351193
• a(n) = n^5 * Sum_{p|n, p prime} 1/p^5.at n=34A351245