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.

A209145 Triangle of coefficients of polynomials u(n,x) jointly generated with A122075; see the Formula section.

Table of values

n a(n)
1 1
2 2
3 1
4 4
5 4
6 1
7 7
8 10
9 5
10 1
11 12
12 22
13 16
14 6
15 1
16 20
17 45
18 43
19 23
20 7
21 1
22 33
23 88
24 104
25 72
26 31
27 8
28 1
29 54
30 167
31 235
32 199
33 110
34 40
35 9
36 1
37 88
38 310
39 506
40 506
41 340
42 158
43 50
44 10
45 1
46 143
47 566
48 1051
49 1211
50 956
51 538
52 217
53 61
54 11
55 1
56 232
57 1020
58 2123
59 2768
60 2507
61 1652
62 805
63 288
64 73
65 12
66 1

List of values

[1, 2, 1, 4, 4, 1, 7, 10, 5, 1, 12, 22, 16, 6, 1, 20, 45, 43, 23, 7, 1, 33, 88, 104, 72, 31, 8, 1, 54, 167, 235, 199, 110, 40, 9, 1, 88, 310, 506, 506, 340, 158, 50, 10, 1, 143, 566, 1051, 1211, 956, 538, 217, 61, 11, 1, 232, 1020, 2123, 2768, 2507, 1652, 805, 288, 73, 12, 1]