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.

A307393 Square array A(n,k), n >= 0, k >= 1, read by antidiagonals, where column k is the expansion of g.f. ((1-x)^(k-4))/((1-x)^k-x^k).

Table of values

n a(n)
0 1
1 1
2 5
3 1
4 4
5 16
6 1
7 4
8 11
9 42
10 1
11 4
12 10
13 26
14 99
15 1
16 4
17 10
18 21
19 57
20 219
21 1
22 4
23 10
24 20
25 42
26 120
27 466
28 1
29 4
30 10
31 20
32 36
33 84
34 247
35 968
36 1
37 4
38 10
39 20
40 35
41 64
42 169
43 502
44 1981
45 1
46 4
47 10
48 20
49 35
50 57
51 120
52 340
53 1013
54 4017
55 1
56 4
57 10
58 20
59 35
60 56
61 93
62 240
63 682
64 2036
65 8100

List of values

[1, 1, 5, 1, 4, 16, 1, 4, 11, 42, 1, 4, 10, 26, 99, 1, 4, 10, 21, 57, 219, 1, 4, 10, 20, 42, 120, 466, 1, 4, 10, 20, 36, 84, 247, 968, 1, 4, 10, 20, 35, 64, 169, 502, 1981, 1, 4, 10, 20, 35, 57, 120, 340, 1013, 4017, 1, 4, 10, 20, 35, 56, 93, 240, 682, 2036, 8100]