3723720

Appears in sequences

• Values of B (the even leg) of a Pythagorean triangle with A and C both prime and part of a twin prime.at n=17A051858
• Numbers that can be expressed as the difference of the squares of primes in exactly twenty distinct ways.at n=2A092016
• Numbers with prime factorization pqrstuv^3.at n=7A190316
• Average of twin prime pairs n having their decimal expansion of the form abcabc or abcabc0 such that n contains three twin primes as divisors.at n=22A235716
• Numbers n such that the multiplicative group modulo n is the direct product of 8 cyclic groups.at n=7A272598
• Denominators of the partial alternating sums of the reciprocals of the unitary totient function (A047994).at n=33A379520
• Denominators of the partial alternating sums of the reciprocals of the unitary totient function (A047994).at n=35A379520
• Lengths of the long leg in the unique primitive Pythagorean triple whose inradius is A000032(n) and such that its long leg and its hypotenuse are consecutive natural numbers.at n=15A386201