38940

Appears in sequences

• Denominators of continued fraction convergents to sqrt(468).at n=15A041893
• Amicable triples: numbers such that sigma(x) = sigma(y) = sigma(z) = x+y+z, x<y<z. We order these triples according to the common value of sigma. Sequence gives x numbers.at n=5A125490
• Amicable triples: numbers such that sigma(x) = sigma(y) = sigma(z) = x+y+z, x<y<z. We order these triples according to the common value of sigma. Sequence gives x numbers.at n=6A125490
• a(n) = n*(2*n^2 + 5*n + 17)/2.at n=33A163661
• a(1)=2, a(2)=3, a(n)=a(n-2)*a(n-1)-a(n-1).at n=7A173094
• Numbers that belong to at least one amicable tuple.at n=30A255215
• G.f. satisfies: A(x) = Sum_{n>=0} binomial((n+1)^2,n)/(n+1) * x^n/A(x)^n.at n=5A295764