39899
domain: N
Appears in sequences
- a(n) = n*(2*n^2 + n + 1)/2.at n=33A085786
- Least number k such that A070635(k) = n.at n=37A138791
- The nearest integer of perimeter of T-square (fractal) after n-iterations, starting with a unit square.at n=21A227621
- Semiprimes of the form C(n) + T(n) where C(n) and T(n) are the n-th cube and triangular numbers.at n=9A240884