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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.

A100478 Pentanacci pi function: a(1)=a(2)=a(3)=a(4)=a(5)=1; for n>5, a(n) = pi(Sum_{j=1..5} a(n-j)) where pi = A000720.

Table of values

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

List of values

[1, 1, 1, 1, 1, 3, 4, 4, 6, 7, 9, 10, 11, 14, 15, 17, 19, 21, 23, 24, 27, 30, 30, 32, 34, 36, 37, 39, 40, 42, 44, 46, 47, 47, 48, 50, 51, 53, 53, 54, 55, 56, 58, 58, 60, 61, 62, 62, 62, 63, 63, 64, 65, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66]

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