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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.

A194459 Number of entries in the n-th row of Pascal's triangle not divisible by 5.

Table of values

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

List of values

[1, 2, 3, 4, 5, 2, 4, 6, 8, 10, 3, 6, 9, 12, 15, 4, 8, 12, 16, 20, 5, 10, 15, 20, 25, 2, 4, 6, 8, 10, 4, 8, 12, 16, 20, 6, 12, 18, 24, 30, 8, 16, 24, 32, 40, 10, 20, 30, 40, 50, 3, 6, 9, 12, 15, 6, 12, 18, 24, 30, 9, 18, 27, 36, 45, 12, 24, 36, 48, 60, 15, 30]

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

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