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.

A074069 Numbers k such that S(k) = Sum_{i=1..k} A068119(i) = 3*k.

Table of values

n a(n)
1 1
2 2
3 10
4 18
5 20
6 25
7 26
8 43
9 46
10 55
11 56
12 71
13 79
14 104
15 107
16 111
17 112
18 113
19 123
20 133
21 136
22 140
23 142
24 144
25 145
26 147
27 150
28 155
29 165
30 195
31 196
32 200
33 204
34 206
35 210
36 214
37 216
38 253
39 254
40 259
41 260
42 264
43 267
44 327
45 335
46 343
47 360
48 363
49 375
50 376
51 380
52 387
53 388
54 393

List of values

[1, 2, 10, 18, 20, 25, 26, 43, 46, 55, 56, 71, 79, 104, 107, 111, 112, 113, 123, 133, 136, 140, 142, 144, 145, 147, 150, 155, 165, 195, 196, 200, 204, 206, 210, 214, 216, 253, 254, 259, 260, 264, 267, 327, 335, 343, 360, 363, 375, 376, 380, 387, 388, 393]