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.

A030139 a(n+1) = sum of digits of (a(n) + a(n-1)).

Table of values

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

List of values

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