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.

A209420 Triangle of coefficients of polynomials v(n,x) jointly generated with A209419; see the Formula section.

Table of values

n a(n)
1 1
2 2
3 2
4 3
5 6
6 3
7 5
8 14
9 13
10 4
11 8
12 30
13 41
14 24
15 5
16 13
17 60
18 109
19 96
20 40
21 6
22 21
23 116
24 262
25 308
26 196
27 62
28 7
29 34
30 218
31 590
32 868
33 743
34 364
35 91
36 8
37 55
38 402
39 1267
40 2240
41 2413
42 1604
43 630
44 128
45 9
46 89
47 730
48 2627
49 5424
50 7046
51 5926
52 3186
53 1032
54 174
55 10
56 144
57 1310
58 5299
59 12516
60 19040
61 19382
62 13255
63 5928
64 1617
65 230

List of values

[1, 2, 2, 3, 6, 3, 5, 14, 13, 4, 8, 30, 41, 24, 5, 13, 60, 109, 96, 40, 6, 21, 116, 262, 308, 196, 62, 7, 34, 218, 590, 868, 743, 364, 91, 8, 55, 402, 1267, 2240, 2413, 1604, 630, 128, 9, 89, 730, 2627, 5424, 7046, 5926, 3186, 1032, 174, 10, 144, 1310, 5299, 12516, 19040, 19382, 13255, 5928, 1617, 230]