Generating function
$$U_{1179}(x, y) = \frac{64 y^{18} \left(1 - \sqrt{- \frac{x \left(- 2 y - \sqrt{1 - 4 y} + 1\right)^{3}}{2 y^{6}} + 1}\right)^{3}}{x^{3} \left(- 2 y - \sqrt{1 - 4 y} + 1\right)^{9}}$$
Explicit formula
$$T_{1179}(n, m, k) = \frac{9 k n {\binom{2 m + 6 n}{m}} {\binom{3 k + 2 n - 1}{n}}}{\left(3 k + n\right) \left(m + 3 n\right)}$$
nan | 0 | 0 | 0 | 0 | 0 | 0 |
3 | 18 | 81 | 33 | 1287 | 4914 | 18564 |
9 | 108 | 81 | 4896 | 26163 | 129276 | 605682 |
28 | 504 | 5292 | 42504 | 2898 | 176904 | 997542 |
9 | 216 | 2916 | 29232 | 24273 | 1767744 | 11686752 |
297 | 891 | 147015 | 176715 | 17307675 | 146571282 | 111285603 |
1001 | 36036 | 702702 | 984984 | 111180069 | 1073836764 | 9212837634 |
Related
Export
Export as LaTeX
Export as Maxima
Confirm deletion
Are you sure, you want to delete Pyramid #1179?