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.

A214869 Decimal expansion of Sum_{n >= 1} n!/(2*n)!.

Table of values

n a(n)
0 5
1 9
2 2
3 2
4 9
5 6
6 5
7 3
8 6
9 4
10 6
11 9
12 3
13 2
14 6
15 5
16 7
17 5
18 6
19 6
20 0
21 4
22 1
23 5
24 0
25 5
26 4
27 5
28 3
29 9
30 0
31 6
32 2
33 6
34 8
35 7
36 2
37 8
38 4
39 6
40 1
41 6
42 6
43 1
44 2
45 2
46 1
47 6
48 9
49 8
50 7
51 1
52 0
53 3
54 7
55 7
56 5
57 6
58 8
59 5
60 8
61 3
62 6
63 5
64 3
65 2
66 0
67 3
68 6
69 7
70 9
71 6
72 1
73 6
74 6
75 5
76 0
77 7
78 5
79 5
80 7
81 0
82 2
83 7
84 2
85 4
86 4
87 3
88 5
89 1
90 5
91 7
92 5
93 0
94 7
95 6
96 1
97 0
98 4
99 2
100 5
101 5
102 3
103 5
104 3

List of values

[5, 9, 2, 2, 9, 6, 5, 3, 6, 4, 6, 9, 3, 2, 6, 5, 7, 5, 6, 6, 0, 4, 1, 5, 0, 5, 4, 5, 3, 9, 0, 6, 2, 6, 8, 7, 2, 8, 4, 6, 1, 6, 6, 1, 2, 2, 1, 6, 9, 8, 7, 1, 0, 3, 7, 7, 5, 6, 8, 5, 8, 3, 6, 5, 3, 2, 0, 3, 6, 7, 9, 6, 1, 6, 6, 5, 0, 7, 5, 5, 7, 0, 2, 7, 2, 4, 4, 3, 5, 1, 5, 7, 5, 0, 7, 6, 1, 0, 4, 2, 5, 5, 3, 5, 3]