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.

A211636 Number of ordered triples (w,x,y) with all terms in {1,...,n} and w^2>=x^2+y^2.

Table of values

n a(n)
0 0
1 0
2 1
3 5
4 13
5 28
6 50
7 80
8 121
9 175
10 244
11 327
12 425
13 544
14 683
15 845
16 1028
17 1236
18 1470
19 1733
20 2027
21 2349
22 2706
23 3096
24 3520
25 3985
26 4489
27 5034
28 5619
29 6247
30 6922
31 7641
32 8411
33 9230
34 10102
35 11030
36 12007
37 13043
38 14133
39 15288
40 16504
41 17778
42 19117

List of values

[0, 0, 1, 5, 13, 28, 50, 80, 121, 175, 244, 327, 425, 544, 683, 845, 1028, 1236, 1470, 1733, 2027, 2349, 2706, 3096, 3520, 3985, 4489, 5034, 5619, 6247, 6922, 7641, 8411, 9230, 10102, 11030, 12007, 13043, 14133, 15288, 16504, 17778, 19117]