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.

A354336 a(n) is the integer w such that (L(2*n)^2, -L(2*n-1)^2, -w) is a primitive solution to the Diophantine equation 2*x^3 + 2*y^3 + z^3 = 125, where L(n) is the n-th Lucas number (A000032).

Table of values

n a(n)
0 1
1 11
2 61
3 401
4 2731
5 18701
6 128161
7 878411
8 6020701
9 41266481
10 282844651
11 1938646061
12 13287677761
13 91075098251
14 624238009981
15 4278590971601
16 29325898791211
17 201002700566861
18 1377693005176801
19 9442848335670731
20 64722245344518301
21 443612869075957361

List of values

[1, 11, 61, 401, 2731, 18701, 128161, 878411, 6020701, 41266481, 282844651, 1938646061, 13287677761, 91075098251, 624238009981, 4278590971601, 29325898791211, 201002700566861, 1377693005176801, 9442848335670731, 64722245344518301, 443612869075957361]