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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.

A213887 Triangle of coefficients of representations of columns of A213743 in binomial basis.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 1
5 1
6 0
7 1
8 2
9 1
10 0
11 1
12 3
13 3
14 1
15 0
16 0
17 4
18 6
19 4
20 1
21 0
22 0
23 3
24 10
25 10
26 5
27 1
28 0
29 0
30 2
31 12
32 20
33 15
34 6
35 1
36 0
37 0
38 1
39 12
40 31
41 35
42 21
43 7
44 1
45 0
46 0
47 0
48 10
49 40
50 65
51 56
52 28
53 8
54 1
55 0
56 0
57 0
58 6
59 44
60 101
61 120
62 84
63 36
64 9
65 1
66 0

List of values

[1, 0, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 3, 3, 1, 0, 0, 4, 6, 4, 1, 0, 0, 3, 10, 10, 5, 1, 0, 0, 2, 12, 20, 15, 6, 1, 0, 0, 1, 12, 31, 35, 21, 7, 1, 0, 0, 0, 10, 40, 65, 56, 28, 8, 1, 0, 0, 0, 6, 44, 101, 120, 84, 36, 9, 1, 0]