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.

A248677 Decimal expansion of r = sum_{n >= 0} floor(n/4)!/n!.

Table of values

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

List of values

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