centered pentagonal number
A centered pentagonal number is a centered figurate number that represents a pentagon with a dot in the center and all other dots surrounding the center in successive pentagonal layers. 1 6 21 56 126 251 456 771 1231 1876 2751. Pin On Products For instance the third one is formed from outlines comprising 1 5 and. . All told thats 51 stars. Not to be confused with centered pentagonal number. It just so happens that when N N equals 50 50 N N is twice a square and N 1 N 1 is a centered pentagonal number. The Generating Function of the centered pentagonal numbers is. A centered pentachoric number is a figurate number that represents a pentachoron. This can be checked as. The first few centered pentagonal numbers are 1 6 16 31 51 76 106 141 181. Ne doit pas être confondu avec Nombre pentagonal. Slovník pojmov zameraný na vedu a jej popularizáciu na Slovensku. Efficient program for Centered pent