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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.

A138847 Row sums of a Collatz triangle.

Table of values

n a(n)
0 1
1 3
2 7
3 15
4 20
5 23
6 29
7 41
8 65
9 82
10 93
11 100
12 114
13 123
14 141
15 177
16 202
17 251
18 284
19 349
20 392
21 478
22 535
23 574
24 652
25 805
26 910
27 1113
28 1248
29 1518
30 1703
31 1826
32 2072
33 2241
34 2570
35 2789
36 2948
37 3243
38 3812
39 4191
40 4474
41 4979
42 5356
43 5607
44 5774
45 5885
46 6107

List of values

[1, 3, 7, 15, 20, 23, 29, 41, 65, 82, 93, 100, 114, 123, 141, 177, 202, 251, 284, 349, 392, 478, 535, 574, 652, 805, 910, 1113, 1248, 1518, 1703, 1826, 2072, 2241, 2570, 2789, 2948, 3243, 3812, 4191, 4474, 4979, 5356, 5607, 5774, 5885, 6107]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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