http://ift.tt/2DNWy57 Time to wrap up my calculations on the moonshine picture , which is the subgraph of Conway’s Big Picture needed to describe all 171 moonshine groups . No doubt I’ve made mistakes. All corrections are welcome. The starting point is the list of 171 moonshine groups which are in the original Monstrous Moonshine paper . The backbone is given by the $97$ number lattices, which are closed under taking divisors and were found by looking at all divisors of the numbers $N=n \times h$ for the 171 moonshine groups of the form $N+e,f,\dots$ or $(n|h)+e,f,\dots$. The Hasse-diagram of this poset (under division) is here (click on the image to get a larger version) There are seven types of coloured numbers, each corresponding to number-lattices which have the same local structure in the moonshine picture, as in the previous post . The white numbered lattices have no further edges in the picture. The yellow number lattices (2,10,14,18,22,26,32,34,40,68,80,88,90,112,126...