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.

A293600 G.f. A(x,y) = Sum_{-oo..+oo} (x - y^n)^(n+1), as a flattened rectangular array of coefficients T(n,k) of x^n * y^(k*(n+k-1)) in A(x,y) for n>=1.

Table of values

n a(n)
1 1
2 1
3 -2
4 1
5 -3
6 2
7 1
8 -4
9 5
10 -2
11 1
12 -5
13 9
14 -7
15 2
16 1
17 -6
18 14
19 -16
20 9
21 -2
22 1
23 -7
24 20
25 -30
26 25
27 -11
28 2
29 1
30 -8
31 27
32 -50
33 55
34 -36
35 13
36 -2
37 1
38 -9
39 35
40 -77
41 105
42 -91
43 49
44 -15
45 2
46 1
47 -10
48 44
49 -112
50 182
51 -196
52 140
53 -64
54 17
55 -2
56 1
57 -11
58 54
59 -156
60 294
61 -378
62 336
63 -204
64 81
65 -19
66 2
67 1
68 -12
69 65
70 -210
71 450
72 -672
73 714
74 -540
75 285
76 -100
77 21
78 -2
79 1
80 -13
81 77
82 -275
83 660
84 -1122
85 1386
86 -1254
87 825
88 -385
89 121
90 -23
91 2
92 1
93 -14
94 90
95 -352
96 935
97 -1782
98 2508
99 -2640
100 2079
101 -1210
102 506
103 -144
104 25
105 -2
106 1
107 -15
108 104
109 -442
110 1287
111 -2717
112 4290
113 -5148
114 4719
115 -3289
116 1716
117 -650
118 169
119 -27
120 2

List of values

[1, 1, -2, 1, -3, 2, 1, -4, 5, -2, 1, -5, 9, -7, 2, 1, -6, 14, -16, 9, -2, 1, -7, 20, -30, 25, -11, 2, 1, -8, 27, -50, 55, -36, 13, -2, 1, -9, 35, -77, 105, -91, 49, -15, 2, 1, -10, 44, -112, 182, -196, 140, -64, 17, -2, 1, -11, 54, -156, 294, -378, 336, -204, 81, -19, 2, 1, -12, 65, -210, 450, -672, 714, -540, 285, -100, 21, -2, 1, -13, 77, -275, 660, -1122, 1386, -1254, 825, -385, 121, -23, 2, 1, -14, 90, -352, 935, -1782, 2508, -2640, 2079, -1210, 506, -144, 25, -2, 1, -15, 104, -442, 1287, -2717, 4290, -5148, 4719, -3289, 1716, -650, 169, -27, 2]