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.

A062761 Number of powerful numbers between 2^(n-1)+1 and 2^n.

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 2
5 3
6 3
7 7
8 8
9 12
10 17
11 25
12 36
13 50
14 74
15 105
16 152
17 213
18 306
19 437
20 620
21 882
22 1256
23 1781
24 2531
25 3588
26 5091
27 7221
28 10225
29 14504
30 20542
31 29101
32 41214
33 58369
34 82638
35 116986
36 165610
37 234387
38 331738
39 469429
40 664291
41 939924
42 1329876
43 1881500
44 2661826
45 3765629

List of values

[1, 0, 1, 1, 2, 3, 3, 7, 8, 12, 17, 25, 36, 50, 74, 105, 152, 213, 306, 437, 620, 882, 1256, 1781, 2531, 3588, 5091, 7221, 10225, 14504, 20542, 29101, 41214, 58369, 82638, 116986, 165610, 234387, 331738, 469429, 664291, 939924, 1329876, 1881500, 2661826, 3765629]

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

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