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.

A304484 a(n) = A033270(n)*A033270(2n), where A033270 counts the odd primes.

Table of values

n a(n)
1 0
2 0
3 2
4 3
5 6
6 8
7 15
8 15
9 18
10 21
11 28
12 32
13 40
14 40
15 45
16 50
17 60
18 60
19 77
20 77
21 84
22 91
23 104
24 112
25 112
26 112
27 120
28 120
29 135
30 144
31 170
32 170
33 170
34 180
35 180
36 190
37 220
38 220
39 220
40 231
41 252
42 264
43 286
44 286
45 299
46 299
47 322
48 322
49 336
50 336
51 350
52 364
53 390
54 405
55 420
56 420
57 435
58 435
59 464
60 464

List of values

[0, 0, 2, 3, 6, 8, 15, 15, 18, 21, 28, 32, 40, 40, 45, 50, 60, 60, 77, 77, 84, 91, 104, 112, 112, 112, 120, 120, 135, 144, 170, 170, 170, 180, 180, 190, 220, 220, 220, 231, 252, 264, 286, 286, 299, 299, 322, 322, 336, 336, 350, 364, 390, 405, 420, 420, 435, 435, 464, 464]

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

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