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.

A328151 a(n) is the smallest nonnegative integer k where exactly n ordered pairs of positive integers (x, y) exist such that x^2 + y^2 = k.

Table of values

n a(n)
0 0
1 2
2 5
3 50
4 65
5 1250
6 325
7 31250
8 1105
9 8450
10 8125
11 19531250
12 5525
13 488281250
14 105625
15 211250
16 27625
17 305175781250
18 71825
19 7629394531250
20 138125
21 5281250
22 126953125
23 4768371582031250
24 160225
25 35701250
26 1221025
27 2442050
28 3453125

List of values

[0, 2, 5, 50, 65, 1250, 325, 31250, 1105, 8450, 8125, 19531250, 5525, 488281250, 105625, 211250, 27625, 305175781250, 71825, 7629394531250, 138125, 5281250, 126953125, 4768371582031250, 160225, 35701250, 1221025, 2442050, 3453125]