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.

A062762 Number of powerful numbers not exceeding 2^n.

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 5
5 8
6 11
7 18
8 26
9 38
10 55
11 80
12 116
13 166
14 240
15 345
16 497
17 710
18 1016
19 1453
20 2073
21 2955
22 4211
23 5992
24 8523
25 12111
26 17202
27 24423
28 34648
29 49152
30 69694
31 98795
32 140009
33 198378
34 281016
35 398002
36 563612
37 797999
38 1129737
39 1599166
40 2263457
41 3203381

List of values

[1, 1, 2, 3, 5, 8, 11, 18, 26, 38, 55, 80, 116, 166, 240, 345, 497, 710, 1016, 1453, 2073, 2955, 4211, 5992, 8523, 12111, 17202, 24423, 34648, 49152, 69694, 98795, 140009, 198378, 281016, 398002, 563612, 797999, 1129737, 1599166, 2263457, 3203381]

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

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