cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A097219 Numbers n that are the hypotenuse of exactly 6 distinct integer-sided right triangles, i.e., n^2 can be written as a sum of two squares in 6 ways.

Original entry on oeis.org

15625, 31250, 46875, 62500, 93750, 109375, 125000, 140625, 171875, 187500, 218750, 250000, 281250, 296875, 328125, 343750, 359375, 375000, 421875, 437500, 484375, 500000, 515625, 562500, 593750, 656250, 671875, 687500, 718750, 734375
Offset: 1

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Author

James R. Buddenhagen, Sep 17 2004

Keywords

Comments

If m is a term, then 2*m and p*m are terms where p is any prime of the form 4k+3. - Ray Chandler, Dec 30 2019

Crossrefs

Cf. A004144 (0), A084645 (1), A084646 (2), A084647 (3), A084648 (4), A084649 (5), A097101 (7), A290499 (8), A290500 (9), A097225 (10), A290501 (11), A097226 (12), A097102 (13), A290502 (14), A290503 (15), A097238 (16), A097239 (17), A290504 (18), A290505 (19), A097103 (22), A097244 (31), A097245 (37), A097282 (40), A097626 (67).

Extensions

More terms from Ray Chandler, Sep 18 2004