![Triangular Numberblock Evolution [ 378 to 406 ]](https://cdn2.scratch.mit.edu/get_image/project/467486437_480x360.png)
Evolve to the next triangle numberblock, or the next numberblock that's a member of the step squad. Starts out with 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, and so forth.
ctafsar this will be the second to last numberblocks chain i'm remixing
