Partition Function Long Sleeve Tee
A partition of a natural number is a way of writing it as a sum of natural numbers. The partition function P counts the number of distinct (unordered) partitions of its argument. Much work has been done on studying P, including finding a (quite complicated) convergent series representation that can be approximated by the formula on the shirt. The partition function is closely related to pentagonal numbers. A bit more formal than a standard-issue t-shirt, the ultra cotton long sleeve tee is a clear comfort winner. The sleeves also act as a nice frame. There are no side seams. The shoulders are taped for improved durability. This makes for a good fitting around the shoulders and neck. The cotton used for these shirts is environmentally friendly. .: 100% cotton (fiber content may vary for different colors).: Medium fabric (6.0 oz/yd² (203 g/m²)).: Classic fit.: Sewn-in label.: Runs smaller than usual