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.

A140973 Numbers k such that arithmetic mean of squares of the first k tribonacci numbers is an integer.

Table of values

n a(n)
1 1
2 2
3 8
4 15
5 16
6 18
7 22
8 32
9 47
10 48
11 53
12 58
13 64
14 70
15 77
16 78
17 80
18 94
19 95
20 96
21 103
22 106
23 128
24 138
25 163
26 199
27 206
28 256
29 257
30 266
31 269
32 311
33 326
34 330
35 352
36 358
37 385
38 397
39 398
40 401
41 419
42 421
43 499
44 512
45 514
46 538
47 587
48 599
49 617
50 622
51 640
52 672
53 683
54 757
55 768
56 770
57 773

List of values

[1, 2, 8, 15, 16, 18, 22, 32, 47, 48, 53, 58, 64, 70, 77, 78, 80, 94, 95, 96, 103, 106, 128, 138, 163, 199, 206, 256, 257, 266, 269, 311, 326, 330, 352, 358, 385, 397, 398, 401, 419, 421, 499, 512, 514, 538, 587, 599, 617, 622, 640, 672, 683, 757, 768, 770, 773]

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

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