216226

Appears in sequences

• Powers of fourth root of 18 rounded down.at n=17A018096
• Powers of fourth root of 18 rounded to nearest integer.at n=17A018097
• Central coefficients of number triangle A113582.at n=30A154323
• a(n) = 14641*n^2 - 4598*n + 362.at n=3A157445
• Numbers n^2+1 such that (n-1)^2+1 and (n+1)^2+1 are prime.at n=8A217583
• a(n) = Sum_{k=1..n} (k/gcd(n, k))^3.at n=30A343513