We found 2 dictionaries that define the word pentagonal numbers:

General (1 matching dictionary)

1. Pentagonal numbers: Wikipedia, the Free Encyclopedia

Computing (1 matching dictionary)

2. Pentagonal numbers: Encyclopedia

▸ Words similar to pentagonal numbers ▸ Usage examples for pentagonal numbers ▸ Idioms related to pentagonal numbers ▸ Wikipedia articles (New!) ▸ Words that often appear near pentagonal numbers ▸ Rhymes of pentagonal numbers ▸ Invented words related to pentagonal numbers