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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.

A210033 Triangle of coefficients of polynomials u(n,x) jointly generated with A210034; see the Formula section.

Table of values

n a(n)
1 1
2 3
3 6
4 1
5 11
6 3
7 1
8 19
9 8
10 3
11 1
12 32
13 18
14 9
15 3
16 1
17 53
18 38
19 22
20 10
21 3
22 1
23 87
24 76
25 51
26 26
27 11
28 3
29 1
30 142
31 147
32 111
33 65
34 30
35 12
36 3
37 1
38 231
39 277
40 233
41 151
42 80
43 34
44 13
45 3
46 1
47 375
48 512
49 474
50 338
51 196
52 96
53 38
54 14
55 3
56 1
57 608
58 932
59 942
60 730
61 463
62 246
63 113
64 42
65 15
66 3
67 1

List of values

[1, 3, 6, 1, 11, 3, 1, 19, 8, 3, 1, 32, 18, 9, 3, 1, 53, 38, 22, 10, 3, 1, 87, 76, 51, 26, 11, 3, 1, 142, 147, 111, 65, 30, 12, 3, 1, 231, 277, 233, 151, 80, 34, 13, 3, 1, 375, 512, 474, 338, 196, 96, 38, 14, 3, 1, 608, 932, 942, 730, 463, 246, 113, 42, 15, 3, 1]

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

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