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.

A202709 (Sum of digits of n!!) / 9.

Table of values

n a(n)
11 2
12 2
13 2
14 2
15 2
16 2
17 4
18 5
19 5
20 4
21 5
22 5
23 4
24 6
25 7
26 5
27 8
28 5
29 8
30 8
31 10
32 10
33 10
34 9
35 12
36 9
37 12
38 9
39 14
40 10
41 12
42 12
43 16
44 9
45 16
46 10
47 15
48 13
49 16
50 14
51 17
52 12
53 20
54 15
55 20
56 15
57 19
58 20
59 20
60 19
61 22
62 20
63 22
64 18
65 21
66 21
67 24
68 25
69 27
70 19
71 27
72 23
73 26
74 23
75 28
76 27
77 25
78 23
79 27
80 23
81 29
82 31

List of values

[2, 2, 2, 2, 2, 2, 4, 5, 5, 4, 5, 5, 4, 6, 7, 5, 8, 5, 8, 8, 10, 10, 10, 9, 12, 9, 12, 9, 14, 10, 12, 12, 16, 9, 16, 10, 15, 13, 16, 14, 17, 12, 20, 15, 20, 15, 19, 20, 20, 19, 22, 20, 22, 18, 21, 21, 24, 25, 27, 19, 27, 23, 26, 23, 28, 27, 25, 23, 27, 23, 29, 31]

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

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