cp's OEIS Frontend

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.

A210551 Triangle of coefficients of polynomials v(n,x) jointly generated with A172431; see the Formula section.

Table of values

n a(n)
1 1
2 3
3 1
4 5
5 6
6 1
7 7
8 15
9 10
10 1
11 9
12 28
13 35
14 15
15 1
16 11
17 45
18 84
19 70
20 21
21 1
22 13
23 66
24 165
25 210
26 126
27 28
28 1
29 15
30 91
31 286
32 495
33 462
34 210
35 36
36 1
37 17
38 120
39 455
40 1001
41 1287
42 924
43 330
44 45
45 1
46 19
47 153
48 680
49 1820
50 3003
51 3003
52 1716
53 495
54 55
55 1
56 21
57 190
58 969
59 3060
60 6188

List of values

[1, 3, 1, 5, 6, 1, 7, 15, 10, 1, 9, 28, 35, 15, 1, 11, 45, 84, 70, 21, 1, 13, 66, 165, 210, 126, 28, 1, 15, 91, 286, 495, 462, 210, 36, 1, 17, 120, 455, 1001, 1287, 924, 330, 45, 1, 19, 153, 680, 1820, 3003, 3003, 1716, 495, 55, 1, 21, 190, 969, 3060, 6188]