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.

A175840 Mirror image of Nicomachus' table: T(n,k) = 3^(n-k)*2^k for n>=0 and 0<=k<=n.

Table of values

n a(n)
0 1
1 3
2 2
3 9
4 6
5 4
6 27
7 18
8 12
9 8
10 81
11 54
12 36
13 24
14 16
15 243
16 162
17 108
18 72
19 48
20 32
21 729
22 486
23 324
24 216
25 144
26 96
27 64
28 2187
29 1458
30 972
31 648
32 432
33 288
34 192
35 128
36 6561
37 4374
38 2916
39 1944
40 1296
41 864
42 576
43 384
44 256
45 19683
46 13122
47 8748
48 5832
49 3888
50 2592
51 1728
52 1152
53 768
54 512

List of values

[1, 3, 2, 9, 6, 4, 27, 18, 12, 8, 81, 54, 36, 24, 16, 243, 162, 108, 72, 48, 32, 729, 486, 324, 216, 144, 96, 64, 2187, 1458, 972, 648, 432, 288, 192, 128, 6561, 4374, 2916, 1944, 1296, 864, 576, 384, 256, 19683, 13122, 8748, 5832, 3888, 2592, 1728, 1152, 768, 512]