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.

A307884 Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of 1/sqrt(1 + 2*(k-1)*x + ((k+1)*x)^2).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 0
5 1
6 1
7 -1
8 -2
9 1
10 1
11 -2
12 -3
13 0
14 1
15 1
16 -3
17 -2
18 11
19 6
20 1
21 1
22 -4
23 1
24 28
25 1
26 0
27 1
28 1
29 -5
30 6
31 45
32 -74
33 -81
34 -20
35 1
36 1
37 -6
38 13
39 56
40 -255
41 -92
42 141
43 0
44 1
45 1
46 -7
47 22
48 55
49 -554
50 477
51 1324
52 363
53 70
54 1
55 1
56 -8
57 33
58 36
59 -959
60 2376
61 2689
62 -3656
63 -1791
64 0
65 1

List of values

[1, 1, 1, 1, 0, 1, 1, -1, -2, 1, 1, -2, -3, 0, 1, 1, -3, -2, 11, 6, 1, 1, -4, 1, 28, 1, 0, 1, 1, -5, 6, 45, -74, -81, -20, 1, 1, -6, 13, 56, -255, -92, 141, 0, 1, 1, -7, 22, 55, -554, 477, 1324, 363, 70, 1, 1, -8, 33, 36, -959, 2376, 2689, -3656, -1791, 0, 1]