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.

A077059 Numbers j such that j^2 + k^2 is a cube for some k > j.

Original entry on oeis.org

0, 2, 5, 7, 9, 10, 16, 17, 18, 26, 30, 35, 36, 37, 38, 40, 44, 47, 50, 51, 54, 56, 58, 60, 65, 72, 73, 74, 75, 80, 82, 88, 95, 97, 101, 102, 106, 107, 115, 122, 128, 130, 135, 136, 140, 142, 143, 144, 145, 146, 150, 154, 164, 170, 174, 182, 187, 189, 190
Offset: 1

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Author

Zak Seidov, Oct 23 2002, Jan 02 2008

Keywords

Comments

The values of minimal k in A077060 and A077061. The values of corresponding c in A077062.

Examples

			2 is in the sequence because 2^2 + 11^2 = 5^3;
7 is in the sequence because 7^2 + 524^2 = 65^3;
1 is not in the sequence because 1^2 + k^2 is not a cube for any k > 1;
3 is not in the sequence because 3^2 + k^2 is not a cube for any k > 3.
174 is in the sequence because 174^2 + 406^2 = 58^3. - _Sean A. Irvine_, May 02 2025
		

Crossrefs

Formula

j is in this sequence if for some integer k > j, j^2 + k^2 = c^3.

Extensions

Corrected and extended by Max Alekseyev, Dec 14 2011
Missing 174 inserted by Sean A. Irvine, May 02 2025