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.

A182921 Sum of exponents in prime-power factorization of the swinging factorial (A056040) n$ = n!/floor(n/2)!^2; also bigomega(n$).

Table of values

n a(n)
0 0
1 0
2 1
3 2
4 2
5 3
6 3
7 4
8 3
9 5
10 5
11 6
12 5
13 6
14 6
15 8
16 6
17 7
18 6
19 7
20 6
21 8
22 8
23 9
24 7
25 9
26 9
27 12
28 11
29 12
30 11
31 12
32 9
33 11
34 11
35 13
36 11
37 12
38 12
39 14
40 12
41 13
42 12
43 13
44 12
45 15
46 15
47 16
48 13
49 15
50 14
51 16
52 15
53 16
54 14
55 16
56 14
57 16
58 16
59 17
60 15
61 16
62 16
63 19
64 15
65 17
66 16
67 17
68 16
69 18
70 17
71 18
72 15

List of values

[0, 0, 1, 2, 2, 3, 3, 4, 3, 5, 5, 6, 5, 6, 6, 8, 6, 7, 6, 7, 6, 8, 8, 9, 7, 9, 9, 12, 11, 12, 11, 12, 9, 11, 11, 13, 11, 12, 12, 14, 12, 13, 12, 13, 12, 15, 15, 16, 13, 15, 14, 16, 15, 16, 14, 16, 14, 16, 16, 17, 15, 16, 16, 19, 15, 17, 16, 17, 16, 18, 17, 18, 15]

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