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.

A381835 k/9 is in this list if k > 3 and A053735(k) = A007949(k), i.e. if digitsum(k, 3) = valuation(k, 3).

Table of values

n a(n)
0 2
1 4
2 10
3 15
4 21
5 28
6 33
7 39
8 57
9 72
10 82
11 87
12 93
13 111
14 126
15 144
16 165
17 180
18 198
19 244
20 249
21 255
22 273
23 288
24 306
25 327
26 342
27 360
28 414
29 459
30 489
31 504
32 522
33 576
34 621
35 675
36 730
37 735
38 741
39 759
40 774
41 792
42 813
43 828
44 846
45 900
46 945
47 975
48 990
49 1008
50 1062
51 1107
52 1161
53 1224
54 1269
55 1323

List of values

[2, 4, 10, 15, 21, 28, 33, 39, 57, 72, 82, 87, 93, 111, 126, 144, 165, 180, 198, 244, 249, 255, 273, 288, 306, 327, 342, 360, 414, 459, 489, 504, 522, 576, 621, 675, 730, 735, 741, 759, 774, 792, 813, 828, 846, 900, 945, 975, 990, 1008, 1062, 1107, 1161, 1224, 1269, 1323]