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.

A356500 Coefficients T(n,k) of x^n*y^k in A(x,y) for n >= 0, k = 0..3*n+1, where A(x,y) satisfies: y = Sum_{n=-oo..+oo} (-x)^(n^2) * A(x,y)^((n-1)^2), as an irregular triangle read by rows.

Table of values

n a(n)
0 0
1 1
2 1
3 0
4 0
5 0
6 1
7 0
8 0
9 0
10 4
11 0
12 0
13 0
14 4
15 0
16 0
17 6
18 0
19 0
20 0
21 28
22 0
23 0
24 0
25 22
26 0
27 3
28 0
29 0
30 0
31 84
32 0
33 0
34 0
35 219
36 0
37 0
38 0
39 140
40 0
41 0
42 0
43 0
44 135
45 0
46 0
47 0
48 981
49 0
50 0
51 0
52 1807
53 0
54 0
55 0
56 969
57 0
58 0
59 0
60 120
61 0
62 0
63 0
64 2568
65 0
66 0
67 0
68 10764
69 0
70 0
71 0
72 15368
73 0
74 0
75 0
76 7084
77 0
78 0
79 54
80 0
81 0
82 0
83 4284
84 0
85 0
86 0
87 38896
88 0
89 0
90 0
91 114240
92 0
93 0
94 0
95 133266
96 0
97 0
98 0
99 53820
100 0
101 9
102 0
103 0
104 0
105 4662
106 0
107 0
108 0
109 94390
110 0
111 0
112 0
113 525980
114 0
115 0
116 0
117 1187433
118 0
119 0
120 0
121 1171390
122 0
123 0
124 0
125 420732

List of values

[0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 6, 0, 0, 0, 28, 0, 0, 0, 22, 0, 3, 0, 0, 0, 84, 0, 0, 0, 219, 0, 0, 0, 140, 0, 0, 0, 0, 135, 0, 0, 0, 981, 0, 0, 0, 1807, 0, 0, 0, 969, 0, 0, 0, 120, 0, 0, 0, 2568, 0, 0, 0, 10764, 0, 0, 0, 15368, 0, 0, 0, 7084, 0, 0, 54, 0, 0, 0, 4284, 0, 0, 0, 38896, 0, 0, 0, 114240, 0, 0, 0, 133266, 0, 0, 0, 53820, 0, 9, 0, 0, 0, 4662, 0, 0, 0, 94390, 0, 0, 0, 525980, 0, 0, 0, 1187433, 0, 0, 0, 1171390, 0, 0, 0, 420732]