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.

A188108 Triangle T(n,m) read by rows, obtained from [A(x)]^m = Sum_{n>=m} T(n,m)*x^n, where A(x) (the g.f. for A069271) satisfies 2*x^2*A(x)^3 = 1 - 2*x*A(x) - sqrt(1-4*x*A(x)).

Table of values

n a(n)
1 1
2 2
3 1
4 9
5 4
6 1
7 52
8 22
9 6
10 1
11 340
12 140
13 39
14 8
15 1
16 2394
17 969
18 272
19 60
20 10
21 1
22 17710
23 7084
24 1995
25 456
26 85
27 12
28 1
29 135720
30 53820
31 15180
32 3542
33 700
34 114
35 14
36 1
37 1068012
38 420732
39 118755
40 28080
41 5750
42 1012
43 147
44 16
45 1
46 8579560
47 3362260
48 949344
49 226548
50 47502
51 8775
52 1400
53 184
54 18
55 1
56 70068713
57 27343888
58 7721604
59 1855040
60 395560
61 75516
62 12789
63 1872
64 225
65 20
66 1
67 580034052
68 225568798
69 63698830
70 15380937
71 3321120
72 649264
73 114576
74 17980
75 2436
76 270
77 22
78 1

List of values

[1, 2, 1, 9, 4, 1, 52, 22, 6, 1, 340, 140, 39, 8, 1, 2394, 969, 272, 60, 10, 1, 17710, 7084, 1995, 456, 85, 12, 1, 135720, 53820, 15180, 3542, 700, 114, 14, 1, 1068012, 420732, 118755, 28080, 5750, 1012, 147, 16, 1, 8579560, 3362260, 949344, 226548, 47502, 8775, 1400, 184, 18, 1, 70068713, 27343888, 7721604, 1855040, 395560, 75516, 12789, 1872, 225, 20, 1, 580034052, 225568798, 63698830, 15380937, 3321120, 649264, 114576, 17980, 2436, 270, 22, 1]