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.

A036378 Number of primes p between powers of 2, 2^n < p <= 2^(n+1).

Table of values

n a(n)
0 1
1 1
2 2
3 2
4 5
5 7
6 13
7 23
8 43
9 75
10 137
11 255
12 464
13 872
14 1612
15 3030
16 5709
17 10749
18 20390
19 38635
20 73586
21 140336
22 268216
23 513708
24 985818
25 1894120
26 3645744
27 7027290
28 13561907
29 26207278
30 50697537
31 98182656
32 190335585
33 369323305
34 717267168
35 1394192236
36 2712103833

List of values

[1, 1, 2, 2, 5, 7, 13, 23, 43, 75, 137, 255, 464, 872, 1612, 3030, 5709, 10749, 20390, 38635, 73586, 140336, 268216, 513708, 985818, 1894120, 3645744, 7027290, 13561907, 26207278, 50697537, 98182656, 190335585, 369323305, 717267168, 1394192236, 2712103833]

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

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