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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.

A095010 Number of 8k+3 primes (A007520) in range [2^n,2^(n+1)].

Table of values

n a(n)
1 1
2 0
3 1
4 1
5 2
6 3
7 7
8 10
9 20
10 35
11 66
12 113
13 218
14 412
15 746
16 1460
17 2672
18 5104
19 9651
20 18375
21 35105
22 67165
23 128410
24 246453
25 473535
26 911489
27 1756670
28 3390856
29 6552449
30 12673142
31 24546849
32 47583904
33 92330578
34 179317889
35 348548185
36 678029708
37 1319939685
38 2571409639

List of values

[1, 0, 1, 1, 2, 3, 7, 10, 20, 35, 66, 113, 218, 412, 746, 1460, 2672, 5104, 9651, 18375, 35105, 67165, 128410, 246453, 473535, 911489, 1756670, 3390856, 6552449, 12673142, 24546849, 47583904, 92330578, 179317889, 348548185, 678029708, 1319939685, 2571409639]

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

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