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.

A368154 Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 1 + 3*x, p(n,x) = u*p(n-1,x) + v*p(n-2,x) for n >= 3, where u = p(2,x), v = 1 - 3*x - x^2.

Table of values

n a(n)
1 1
2 1
3 3
4 2
5 3
6 8
7 3
8 9
9 7
10 21
11 5
12 15
13 31
14 15
15 55
16 8
17 30
18 53
19 99
20 30
21 144
22 13
23 54
24 124
25 165
26 306
27 54
28 377
29 21
30 99
31 241
32 447
33 481
34 927
35 77
36 987
37 34
38 177
39 487
40 909
41 1509
42 1341
43 2767
44 33
45 2584
46 55
47 315
48 941
49 1995
50 3135
51 4905
52 3605
53 8163
54 -355
55 6765
56 89
57 555

List of values

[1, 1, 3, 2, 3, 8, 3, 9, 7, 21, 5, 15, 31, 15, 55, 8, 30, 53, 99, 30, 144, 13, 54, 124, 165, 306, 54, 377, 21, 99, 241, 447, 481, 927, 77, 987, 34, 177, 487, 909, 1509, 1341, 2767, 33, 2584, 55, 315, 941, 1995, 3135, 4905, 3605, 8163, -355, 6765, 89, 555]