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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.

A025544 a(n) = sum of the exponents in the prime factorization of the least common multiple of the first n composite numbers.

Table of values

n a(n)
1 2
2 3
3 4
4 5
5 6
6 6
7 7
8 7
9 8
10 8
11 8
12 8
13 9
14 9
15 10
16 11
17 12
18 12
19 12
20 13
21 13
22 14
23 14
24 14
25 15
26 15
27 15
28 15
29 15
30 15
31 16
32 16
33 17
34 17
35 17
36 17
37 17
38 17
39 17
40 17
41 18
42 18
43 19
44 19
45 20
46 20
47 20
48 20
49 20
50 20
51 20
52 21
53 21
54 21
55 21
56 21
57 21
58 22
59 23
60 23
61 23
62 24
63 24
64 24
65 24
66 24
67 24
68 24
69 25
70 25
71 25
72 25
73 25
74 25

List of values

[2, 3, 4, 5, 6, 6, 7, 7, 8, 8, 8, 8, 9, 9, 10, 11, 12, 12, 12, 13, 13, 14, 14, 14, 15, 15, 15, 15, 15, 15, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 19, 19, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 22, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25]

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

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