1283975

Appears in sequences

• Numbers n such that n and n+1 both have 48 divisors.at n=24A274815
• For 1<=x<=n, 1<=y<=n, write gcd(x,y) = u*x+v*y with u,v minimal; a(n) = n^4*s, where s is the population variance of the values of v.at n=19A345688