One thing I keep forgetting to post. An 11 tier 2D pyramid, with One block at the top and Eleven on the bottom row, there are 66 total blocks.

3 rows = 6 blocks and 6 is the First Perfect Number.

7 rows = 28 blocks and 28 is the Second Perfect Number.

8 rows = 36 blocks which is 6 squared.

10 rows = 55 blocks.

I thought the numbers were interesting and worth mentioning.

Ribbit