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.

A139125 a(0) = 0; a(n) = a(n-1) + binomial( n(n+1)/2, n) mod n.

Table of values

n a(n)
0 0
1 1
2 3
3 5
4 8
5 8
6 12
7 16
8 21
9 21
10 27
11 34
12 41
13 41
14 50
15 58
16 67
17 67
18 77
19 77
20 80
21 80
22 92
23 98
24 111
25 124
26 129
27 129
28 144
29 148
30 164
31 180
32 204
33 204
34 224
35 236
36 255
37 255
38 259
39 297
40 318
41 318
42 340
43 362
44 392
45 392
46 416
47 428
48 453
49 478
50 496
51 496
52 523
53 523
54 568
55 619
56 670
57 670
58 700

List of values

[0, 1, 3, 5, 8, 8, 12, 16, 21, 21, 27, 34, 41, 41, 50, 58, 67, 67, 77, 77, 80, 80, 92, 98, 111, 124, 129, 129, 144, 148, 164, 180, 204, 204, 224, 236, 255, 255, 259, 297, 318, 318, 340, 362, 392, 392, 416, 428, 453, 478, 496, 496, 523, 523, 568, 619, 670, 670, 700]