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.

A109001 Triangle, read by rows, where g.f. of row n equals the product of (1-x)^n and the g.f. of the coordination sequence for root lattice B_n, for n >= 0.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 6
5 1
6 1
7 15
8 23
9 1
10 1
11 28
12 102
13 60
14 1
15 1
16 45
17 290
18 402
19 125
20 1
21 1
22 66
23 655
24 1596
25 1167
26 226
27 1
28 1
29 91
30 1281
31 4795
32 6155
33 2793
34 371
35 1
36 1
37 120
38 2268
39 12040
40 23750
41 18888
42 5852
43 568
44 1
45 1
46 153
47 3732
48 26628
49 74574
50 91118
51 49380
52 11124
53 825
54 1
55 1
56 190
57 5805
58 53544
59 201810
60 350196
61 291410
62 114600
63 19629
64 1150
65 1

List of values

[1, 1, 1, 1, 6, 1, 1, 15, 23, 1, 1, 28, 102, 60, 1, 1, 45, 290, 402, 125, 1, 1, 66, 655, 1596, 1167, 226, 1, 1, 91, 1281, 4795, 6155, 2793, 371, 1, 1, 120, 2268, 12040, 23750, 18888, 5852, 568, 1, 1, 153, 3732, 26628, 74574, 91118, 49380, 11124, 825, 1, 1, 190, 5805, 53544, 201810, 350196, 291410, 114600, 19629, 1150, 1]