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.

A003065 Number of integers with a shortest addition chain of length n.

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 5
5 9
6 15
7 26
8 44
9 78
10 136
11 246
12 432
13 772
14 1382
15 2481
16 4490
17 8170
18 14866
19 27128
20 49544
21 90371
22 165432
23 303475
24 558275
25 1028508
26 1896704
27 3501029
28 6465774
29 11947258
30 22087489
31 40886910
32 75763102
33 140588339
34 261070184
35 485074788
36 901751654
37 1677060520

List of values

[1, 1, 2, 3, 5, 9, 15, 26, 44, 78, 136, 246, 432, 772, 1382, 2481, 4490, 8170, 14866, 27128, 49544, 90371, 165432, 303475, 558275, 1028508, 1896704, 3501029, 6465774, 11947258, 22087489, 40886910, 75763102, 140588339, 261070184, 485074788, 901751654, 1677060520]