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.

A209140 Triangle of coefficients of polynomials v(n,x) jointly generated with A209139; see the Formula section.

Table of values

n a(n)
1 1
2 1
3 3
4 2
5 5
6 7
7 3
8 12
9 18
10 17
11 5
12 23
13 51
14 58
15 41
16 8
17 45
18 118
19 189
20 175
21 99
22 13
23 84
24 264
25 506
26 645
27 507
28 239
29 21
30 155
31 558
32 1268
33 1950
34 2085
35 1428
36 577
37 34
38 281
39 1145
40 2974
41 5395
42 6998
43 6482
44 3940
45 1393
46 55
47 504
48 2286
49 6687
50 13851
51 21141
52 23856

List of values

[1, 1, 3, 2, 5, 7, 3, 12, 18, 17, 5, 23, 51, 58, 41, 8, 45, 118, 189, 175, 99, 13, 84, 264, 506, 645, 507, 239, 21, 155, 558, 1268, 1950, 2085, 1428, 577, 34, 281, 1145, 2974, 5395, 6998, 6482, 3940, 1393, 55, 504, 2286, 6687, 13851, 21141, 23856]