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.

A331078 a(n) = Sum_{k = 1..n} [u_2(k)*u_3(k)], where u_2 = A038548, u_3 = A034836.

Table of values

n a(n)
1 1
2 2
3 3
4 7
5 8
6 12
7 13
8 19
9 23
10 27
11 28
12 40
13 41
14 45
15 49
16 61
17 62
18 74
19 75
20 87
21 91
22 95
23 96
24 120
25 124
26 128
27 134
28 146
29 147
30 167
31 168
32 183
33 187
34 191
35 195
36 235
37 236
38 240
39 244
40 268
41 269
42 289
43 290
44 302
45 314
46 318
47 319
48 364
49 368
50 380
51 384
52 396
53 397
54 421
55 425
56 449
57 453
58 457
59 458
60 518
61 519
62 523
63 535
64 563
65 567
66 587
67 588
68 600
69 604
70 624

List of values

[1, 2, 3, 7, 8, 12, 13, 19, 23, 27, 28, 40, 41, 45, 49, 61, 62, 74, 75, 87, 91, 95, 96, 120, 124, 128, 134, 146, 147, 167, 168, 183, 187, 191, 195, 235, 236, 240, 244, 268, 269, 289, 290, 302, 314, 318, 319, 364, 368, 380, 384, 396, 397, 421, 425, 449, 453, 457, 458, 518, 519, 523, 535, 563, 567, 587, 588, 600, 604, 624]