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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.

A259525 First differences of A007318, when Pascal's triangle is seen as flattened list.

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 -1
5 0
6 2
7 0
8 -2
9 0
10 3
11 2
12 -2
13 -3
14 0
15 4
16 5
17 0
18 -5
19 -4
20 0
21 5
22 9
23 5
24 -5
25 -9
26 -5
27 0
28 6
29 14
30 14
31 0
32 -14
33 -14
34 -6
35 0
36 7
37 20
38 28
39 14
40 -14
41 -28
42 -20
43 -7
44 0
45 8
46 27
47 48
48 42
49 0
50 -42
51 -48
52 -27
53 -8
54 0
55 9
56 35
57 75
58 90
59 42
60 -42
61 -90
62 -75
63 -35
64 -9
65 0
66 10
67 44
68 110

List of values

[0, 0, 0, 1, -1, 0, 2, 0, -2, 0, 3, 2, -2, -3, 0, 4, 5, 0, -5, -4, 0, 5, 9, 5, -5, -9, -5, 0, 6, 14, 14, 0, -14, -14, -6, 0, 7, 20, 28, 14, -14, -28, -20, -7, 0, 8, 27, 48, 42, 0, -42, -48, -27, -8, 0, 9, 35, 75, 90, 42, -42, -90, -75, -35, -9, 0, 10, 44, 110]

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