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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.

A219841 Positions of numbers 2^n + 3^n (n >= 0) in A004050.

Table of values

n a(n)
0 1
1 4
2 9
3 17
4 29
5 44
6 62
7 86
8 108
9 139
10 166
11 204
12 245
13 282
14 331
15 371
16 427
17 472
18 535
19 602
20 656
21 730
22 788
23 869
24 953
25 1021
26 1113
27 1184
28 1283
29 1359
30 1465
31 1575
32 1660
33 1777
34 1866
35 1990
36 2118
37 2216
38 2351
39 2453
40 2595
41 2702
42 2851
43 3004
44 3120
45 3280
46 3400
47 3567
48 3738

List of values

[1, 4, 9, 17, 29, 44, 62, 86, 108, 139, 166, 204, 245, 282, 331, 371, 427, 472, 535, 602, 656, 730, 788, 869, 953, 1021, 1113, 1184, 1283, 1359, 1465, 1575, 1660, 1777, 1866, 1990, 2118, 2216, 2351, 2453, 2595, 2702, 2851, 3004, 3120, 3280, 3400, 3567, 3738]