369799

Appears in sequences

• Quasi-Carmichael numbers to base 7: squarefree composites n such that (n,2*3*5) = 1 and prime p|n ==> p-7|n-7.at n=28A029556
• Quasi-Carmichael numbers to at least one negative base and at least one positive base.at n=33A257759
• Sum of the legs of the unique primitive Pythagorean triple whose inradius is A000108(n) and such that its long leg and its hypotenuse are consecutive natural numbers.at n=7A383957