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.

A000879 Number of primes < prime(n)^2.

Table of values

n a(n)
1 2
2 4
3 9
4 15
5 30
6 39
7 61
8 72
9 99
10 146
11 162
12 219
13 263
14 283
15 329
16 409
17 487
18 519
19 609
20 675
21 705
22 811
23 886
24 1000
25 1163
26 1252
27 1294
28 1381
29 1423
30 1523
31 1877
32 1976
33 2141
34 2190
35 2489
36 2547
37 2729
38 2915
39 3043
40 3241
41 3436
42 3512
43 3868
44 3945
45 4089
46 4164
47 4627
48 5106

List of values

[2, 4, 9, 15, 30, 39, 61, 72, 99, 146, 162, 219, 263, 283, 329, 409, 487, 519, 609, 675, 705, 811, 886, 1000, 1163, 1252, 1294, 1381, 1423, 1523, 1877, 1976, 2141, 2190, 2489, 2547, 2729, 2915, 3043, 3241, 3436, 3512, 3868, 3945, 4089, 4164, 4627, 5106]

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

Content is available under The OEIS End-User License Agreement.