120320

Appears in sequences

• Number x such that x | A255242(x).at n=31A255243
• a(n) = largest k such that A049820(k) <= A262509(n).at n=11A263083
• Binomial transform of the centered triangular numbers A005448.at n=11A295288
• Numbers k >= 1 such that A018804(k) divided by A000203(k) is an integer.at n=38A349726