Take 36 cubes.
How many different blocks can you make? For example 6 by 6 by 1, or 3 by 6 by 2, or 3 by 3 by 4, or 2 by 3 by 6, or 2 by 2 by 9, or 2 by 1 by 18. Just how many different ones can you find?
Growing different pyramids of cubes which in turn generate different sequences of number:
| Stage | 1 | 2 | 3 |
| L | 1 | 3 | 5 |
| Tp | 1 | 4 | 10 |
| Ap | 1 | 5 | 14 |