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This article is within the scope of WikiProject Numbers, a collaborative effort to improve the coverage of Numbers on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.NumbersWikipedia:WikiProject NumbersTemplate:WikiProject NumbersNumbers
The section "generalized heptagonal number" highly needs some explanation. At the moment, only a formula is presented and not much else. Bob.v.R (talk) 03:08, 20 September 2017 (UTC)[reply]