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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.

A036060 Number of 3-component Carmichael numbers C = (6M + 1)(12M + 1)(18M + 1) < 10^n.

Table of values

n a(n)
3 0
4 1
5 1
6 2
7 2
8 3
9 7
10 10
11 16
12 25
13 50
14 86
15 150
16 256
17 436
18 783
19 1435
20 2631
21 4765
22 8766
23 16320
24 30601
25 57719
26 109504
27 208822
28 400643
29 771735
30 1494772
31 2903761
32 5658670
33 11059937
34 21696205
35 42670184
36 84144873
37 66369603
38 329733896
39 655014986
40 1303918824
41 2601139051

List of values

[0, 1, 1, 2, 2, 3, 7, 10, 16, 25, 50, 86, 150, 256, 436, 783, 1435, 2631, 4765, 8766, 16320, 30601, 57719, 109504, 208822, 400643, 771735, 1494772, 2903761, 5658670, 11059937, 21696205, 42670184, 84144873, 66369603, 329733896, 655014986, 1303918824, 2601139051]

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

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