122825

Appears in sequences

• Numbers n that are the hypotenuse of exactly 17 distinct integer-sided right triangles, i.e., n^2 can be written as a sum of two squares in 17 ways.at n=10A097239
• Numbers that factorize into a prime number of factors all raised to different prime exponents and no number appears both as an exponent and as a prime factor.at n=28A114131
• Totally multiplicative sequence with a(p) = 8p+1 for prime p.at n=23A166666
• Numbers k such that k*product_of_digits(k) is a nonzero cube.at n=15A229544
• a(n) is the index of the first occurrence of n in A331284.at n=42A331285
• Numbers k that are the maximum of integers |k3|, |k5|, |k7| with |k3| + |k5| + |k7| > 0, and |k3*sqrt(3) + k5*sqrt(5) + k7*sqrt(7)| is smaller than for any smaller value of k.at n=15A379918
• a(n) is the number of ways to write prime(n) as a sum of distinct composites.at n=34A381251