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.

A368151 Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 1 + 3x, p(n,x) = u*p(n-1,x) + v*p(n-2,x) for n >=3, where u = p(2,x), v = 2 - x^2.

Table of values

n a(n)
1 1
2 1
3 3
4 3
5 6
6 8
7 5
8 21
9 25
10 21
11 11
12 48
13 101
14 90
15 55
16 21
17 123
18 290
19 414
20 300
21 144
22 43
23 282
24 850
25 1416
26 1551
27 954
28 377
29 85
30 657
31 2255
32 4671
33 6109
34 5481
35 2939
36 987
37 171
38 1476
39 5883
40 13986
41 22374
42 24300
43 18585
44 8850
45 2584
46 341
47 3303
48 14736
49 40320
50 74295
51 97713

List of values

[1, 1, 3, 3, 6, 8, 5, 21, 25, 21, 11, 48, 101, 90, 55, 21, 123, 290, 414, 300, 144, 43, 282, 850, 1416, 1551, 954, 377, 85, 657, 2255, 4671, 6109, 5481, 2939, 987, 171, 1476, 5883, 13986, 22374, 24300, 18585, 8850, 2584, 341, 3303, 14736, 40320, 74295, 97713]