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.

A341398 Number of integer solutions to (x_1)^2 + (x_2)^2 + ... + (x_9)^2 <= n.

Table of values

n a(n)
0 1
1 19
2 163
3 835
4 2869
5 7189
6 14581
7 27253
8 49861
9 84663
10 129303
11 190071
12 284055
13 409335
14 550455
15 732855
16 995241
17 1312617
18 1656153
19 2077497
20 2634777
21 3300057
22 4003641
23 4804281
24 5872665
25 7129227
26 8363307
27 9784491
28 11635755
29 13670475
30 15727755
31 18066315
32 20950491

List of values

[1, 19, 163, 835, 2869, 7189, 14581, 27253, 49861, 84663, 129303, 190071, 284055, 409335, 550455, 732855, 995241, 1312617, 1656153, 2077497, 2634777, 3300057, 4003641, 4804281, 5872665, 7129227, 8363307, 9784491, 11635755, 13670475, 15727755, 18066315, 20950491]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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