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.

A038222 Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*4^j.

Table of values

n a(n)
0 1
1 3
2 4
3 9
4 24
5 16
6 27
7 108
8 144
9 64
10 81
11 432
12 864
13 768
14 256
15 243
16 1620
17 4320
18 5760
19 3840
20 1024
21 729
22 5832
23 19440
24 34560
25 34560
26 18432
27 4096
28 2187
29 20412
30 81648
31 181440
32 241920
33 193536
34 86016
35 16384
36 6561
37 69984
38 326592
39 870912
40 1451520

List of values

[1, 3, 4, 9, 24, 16, 27, 108, 144, 64, 81, 432, 864, 768, 256, 243, 1620, 4320, 5760, 3840, 1024, 729, 5832, 19440, 34560, 34560, 18432, 4096, 2187, 20412, 81648, 181440, 241920, 193536, 86016, 16384, 6561, 69984, 326592, 870912, 1451520]