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.

A057569 Numbers of the form k*(5*k+1)/2 or k*(5*k-1)/2.

Table of values

n a(n)
1 0
2 2
3 3
4 9
5 11
6 21
7 24
8 38
9 42
10 60
11 65
12 87
13 93
14 119
15 126
16 156
17 164
18 198
19 207
20 245
21 255
22 297
23 308
24 354
25 366
26 416
27 429
28 483
29 497
30 555
31 570
32 632
33 648
34 714
35 731
36 801
37 819
38 893
39 912
40 990
41 1010
42 1092
43 1113
44 1199
45 1221
46 1311
47 1334
48 1428
49 1452
50 1550

List of values

[0, 2, 3, 9, 11, 21, 24, 38, 42, 60, 65, 87, 93, 119, 126, 156, 164, 198, 207, 245, 255, 297, 308, 354, 366, 416, 429, 483, 497, 555, 570, 632, 648, 714, 731, 801, 819, 893, 912, 990, 1010, 1092, 1113, 1199, 1221, 1311, 1334, 1428, 1452, 1550]

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

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