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.

A023827 Sum of exponents in prime-power factorization of C(4n,n-1).

Table of values

n a(n)
1 0
2 3
3 3
4 6
5 4
6 7
7 8
8 10
9 9
10 11
11 8
12 11
13 10
14 15
15 14
16 16
17 13
18 16
19 14
20 18
21 15
22 17
23 17
24 21
25 20
26 21
27 19
28 20
29 18
30 22
31 21
32 26
33 21
34 26
35 24
36 27
37 23
38 26
39 28
40 28
41 28
42 30
43 26
44 30
45 27
46 29
47 29
48 33
49 30
50 33
51 30
52 33
53 30
54 33
55 31
56 33
57 31
58 33
59 32
60 36
61 35
62 39
63 39
64 42
65 37
66 40
67 38
68 41
69 40
70 42
71 40
72 44
73 41
74 45
75 44
76 46
77 44
78 46

List of values

[0, 3, 3, 6, 4, 7, 8, 10, 9, 11, 8, 11, 10, 15, 14, 16, 13, 16, 14, 18, 15, 17, 17, 21, 20, 21, 19, 20, 18, 22, 21, 26, 21, 26, 24, 27, 23, 26, 28, 28, 28, 30, 26, 30, 27, 29, 29, 33, 30, 33, 30, 33, 30, 33, 31, 33, 31, 33, 32, 36, 35, 39, 39, 42, 37, 40, 38, 41, 40, 42, 40, 44, 41, 45, 44, 46, 44, 46]

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