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.

A335333 Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of 1/sqrt(1 - 2*(2*k+1)*x + x^2).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 3
5 1
6 1
7 5
8 13
9 1
10 1
11 7
12 37
13 63
14 1
15 1
16 9
17 73
18 305
19 321
20 1
21 1
22 11
23 121
24 847
25 2641
26 1683
27 1
28 1
29 13
30 181
31 1809
32 10321
33 23525
34 8989
35 1
36 1
37 15
38 253
39 3311
40 28401
41 129367
42 213445
43 48639
44 1
45 1
46 17
47 337
48 5473
49 63601
50 458649
51 1651609
52 1961825
53 265729
54 1

List of values

[1, 1, 1, 1, 3, 1, 1, 5, 13, 1, 1, 7, 37, 63, 1, 1, 9, 73, 305, 321, 1, 1, 11, 121, 847, 2641, 1683, 1, 1, 13, 181, 1809, 10321, 23525, 8989, 1, 1, 15, 253, 3311, 28401, 129367, 213445, 48639, 1, 1, 17, 337, 5473, 63601, 458649, 1651609, 1961825, 265729, 1]