109725

Appears in sequences

• a(n) = n*(16*n^2 - 1).at n=18A069975
• a(n) = (n+1)*(n+2)^3*(n+3)*(2n+3)*(2n+5)/360.at n=8A107970
• Number of orbits of Aut(Z^7) as function of the infinity norm n of the representative lattice point of the orbit, when the cardinality of the orbit is equal to 161280.at n=22A266395
• Numbers k satisfying gcd(k^2, sigma(k^2)) > sigma(k), where sigma is the sum-of-divisors function.at n=33A322154