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.

A086404 Square array of numbers T(n,k) = ((1+sqrt(3))*(k+sqrt(3))^n-(1-sqrt(3))*(k-sqrt(3))^n)/(2*sqrt(3)), read by antidiagonals.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 3
6 1
7 3
8 6
9 3
10 1
11 4
12 11
13 16
14 9
15 1
16 5
17 18
18 41
19 44
20 9
21 1
22 6
23 27
24 84
25 153
26 120
27 27
28 1
29 7
30 38
31 151
32 396
33 571
34 328
35 27
36 1
37 8
38 51
39 248
40 857
41 1872
42 2131
43 896
44 81
45 1
46 9
47 66
48 381
49 1644
50 4893
51 8856
52 7953
53 2448
54 81
55 1
56 10
57 83
58 556
59 2889
60 10984
61 28003
62 41904
63 29681

List of values

[1, 1, 1, 1, 2, 3, 1, 3, 6, 3, 1, 4, 11, 16, 9, 1, 5, 18, 41, 44, 9, 1, 6, 27, 84, 153, 120, 27, 1, 7, 38, 151, 396, 571, 328, 27, 1, 8, 51, 248, 857, 1872, 2131, 896, 81, 1, 9, 66, 381, 1644, 4893, 8856, 7953, 2448, 81, 1, 10, 83, 556, 2889, 10984, 28003, 41904, 29681]