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.

A193821 Triangular array: the fusion of polynomial sequences P and Q given by p(n,x)=(x+2)^n and q(n,x)=x^n+x^(n-1)+...+x+1.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 3
5 3
6 4
7 8
8 9
9 9
10 8
11 20
12 26
13 27
14 27
15 16
16 48
17 72
18 80
19 81
20 81
21 32
22 112
23 192
24 232
25 242
26 243
27 243
28 64
29 256
30 496
31 656
32 716
33 728
34 729
35 729
36 128
37 576
38 1248
39 1808
40 2088
41 2172
42 2186
43 2187
44 2187
45 256
46 1280
47 3072
48 4864
49 5984
50 6432
51 6544
52 6560
53 6561
54 6561

List of values

[1, 1, 1, 2, 3, 3, 4, 8, 9, 9, 8, 20, 26, 27, 27, 16, 48, 72, 80, 81, 81, 32, 112, 192, 232, 242, 243, 243, 64, 256, 496, 656, 716, 728, 729, 729, 128, 576, 1248, 1808, 2088, 2172, 2186, 2187, 2187, 256, 1280, 3072, 4864, 5984, 6432, 6544, 6560, 6561, 6561]