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.

A355350 G.f. A(x,y) satisfies: x*y = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n+1)/2) * A(x,y)^n, with coefficients T(n,k) of x^n*y^k in A(x,y) given as a triangle read by rows.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 3
5 1
6 0
7 9
8 6
9 1
10 0
11 22
12 27
13 10
14 1
15 0
16 51
17 98
18 66
19 15
20 1
21 0
22 108
23 315
24 340
25 135
26 21
27 1
28 0
29 221
30 918
31 1495
32 910
33 246
34 28
35 1
36 0
37 429
38 2492
39 5838
40 5070
41 2086
42 413
43 36
44 1
45 0
46 810
47 6372
48 20805
49 24543
50 14280
51 4284
52 652
53 45
54 1
55 0
56 1479
57 15525
58 68816
59 106535
60 83559
61 35168
62 8100
63 981
64 55
65 1
66 0
67 2640
68 36280
69 213945
70 423390
71 432930
72 243208
73 78282
74 14355
75 1420
76 66
77 1

List of values

[1, 0, 1, 0, 3, 1, 0, 9, 6, 1, 0, 22, 27, 10, 1, 0, 51, 98, 66, 15, 1, 0, 108, 315, 340, 135, 21, 1, 0, 221, 918, 1495, 910, 246, 28, 1, 0, 429, 2492, 5838, 5070, 2086, 413, 36, 1, 0, 810, 6372, 20805, 24543, 14280, 4284, 652, 45, 1, 0, 1479, 15525, 68816, 106535, 83559, 35168, 8100, 981, 55, 1, 0, 2640, 36280, 213945, 423390, 432930, 243208, 78282, 14355, 1420, 66, 1]