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.

A209135 Triangle of coefficients of polynomials u(n,x) jointly generated with A209136; see the Formula section.

Table of values

n a(n)
1 1
2 2
3 1
4 3
5 5
6 3
7 4
8 14
9 16
10 5
11 5
12 30
13 54
14 39
15 11
16 6
17 55
18 144
19 171
20 98
21 21
22 7
23 91
24 329
25 561
26 503
27 229
28 43
29 8
30 140
31 672
32 1534
33 1928
34 1380
35 532
36 85
37 9
38 204
39 1260
40 3690
41 6106
42 6084
43 3636
44 1203
45 171
46 10
47 285
48 2208
49 8058
50 16852
51 21890
52 18060
53 9249
54 2694

List of values

[1, 2, 1, 3, 5, 3, 4, 14, 16, 5, 5, 30, 54, 39, 11, 6, 55, 144, 171, 98, 21, 7, 91, 329, 561, 503, 229, 43, 8, 140, 672, 1534, 1928, 1380, 532, 85, 9, 204, 1260, 3690, 6106, 6084, 3636, 1203, 171, 10, 285, 2208, 8058, 16852, 21890, 18060, 9249, 2694]