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.

A049343 Numbers m such that 2m and m^2 have same digit sum.

Table of values

n a(n)
1 0
2 2
3 9
4 11
5 18
6 20
7 29
8 38
9 45
10 47
11 90
12 99
13 101
14 110
15 119
16 144
17 146
18 180
19 182
20 189
21 198
22 200
23 245
24 290
25 299
26 335
27 344
28 351
29 362
30 369
31 380
32 398
33 450
34 452
35 459
36 461
37 468
38 470
39 479
40 488
41 495
42 497
43 639
44 729
45 794
46 839
47 848
48 900
49 929
50 954
51 990
52 999

List of values

[0, 2, 9, 11, 18, 20, 29, 38, 45, 47, 90, 99, 101, 110, 119, 144, 146, 180, 182, 189, 198, 200, 245, 290, 299, 335, 344, 351, 362, 369, 380, 398, 450, 452, 459, 461, 468, 470, 479, 488, 495, 497, 639, 729, 794, 839, 848, 900, 929, 954, 990, 999]