Guaranteed to be a Pointless Endeavour

Get it?? Pointless??? Cuz it's a circle. Ah, puns. Anyway, here is the latest shape-themed pattern. This one is a circle made from single crochet stitches in spiral rounds. The largest circle I've made using this pattern is 18 rows (which is a decent sized circle), but I've calculated the number of single crochet increases…