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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.

A225261 Number of distinct values of the sum of 4 products of three 0..n integers.

Table of values

n a(n)
1 5
2 28
3 90
4 205
5 409
6 694
7 1123
8 1668
9 2396
10 3298
11 4442
12 5741
13 7410
14 9266
15 11443
16 13937
17 16857
18 20031
19 23746
20 27694
21 32236
22 37143
23 42619
24 48390
25 55021
26 62036
27 69617
28 77815
29 86744
30 96000
31 106372
32 117136
33 128823
34 141110
35 154192
36 167871
37 182867
38 198285

List of values

[5, 28, 90, 205, 409, 694, 1123, 1668, 2396, 3298, 4442, 5741, 7410, 9266, 11443, 13937, 16857, 20031, 23746, 27694, 32236, 37143, 42619, 48390, 55021, 62036, 69617, 77815, 86744, 96000, 106372, 117136, 128823, 141110, 154192, 167871, 182867, 198285]

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

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