| 词条 | Loeschian number |
| 释义 |
| image = | image_size = | alt = | caption = | named_after = August Lösch | publication_year = | author = | terms_number = | con_number = | number = | parentsequence = [https://oeis.org/A032766 A032766] | formula = x2 + xy + y2 for integer x, y | first_terms = 0, 1, 3, 4, 7, 9, 12, 13, 16 | largest_known_term = | OEIS = A003136 | OEIS_name = Loeschian numbers }} In number theory, the numbers of the form x2 + xy + y2 (for integer x, y) are called the Loeschian numbers. These numbers are named after August Lösch. They are the norms of the Eisenstein integers. References
1 : Integer sequences |
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