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.

A227075 A triangle formed like Pascal's triangle, but with 3^n on the borders instead of 1.

Table of values

n a(n)
0 1
1 3
2 3
3 9
4 6
5 9
6 27
7 15
8 15
9 27
10 81
11 42
12 30
13 42
14 81
15 243
16 123
17 72
18 72
19 123
20 243
21 729
22 366
23 195
24 144
25 195
26 366
27 729
28 2187
29 1095
30 561
31 339
32 339
33 561
34 1095
35 2187
36 6561
37 3282
38 1656
39 900
40 678
41 900
42 1656
43 3282
44 6561
45 19683
46 9843
47 4938
48 2556
49 1578
50 1578
51 2556
52 4938

List of values

[1, 3, 3, 9, 6, 9, 27, 15, 15, 27, 81, 42, 30, 42, 81, 243, 123, 72, 72, 123, 243, 729, 366, 195, 144, 195, 366, 729, 2187, 1095, 561, 339, 339, 561, 1095, 2187, 6561, 3282, 1656, 900, 678, 900, 1656, 3282, 6561, 19683, 9843, 4938, 2556, 1578, 1578, 2556, 4938]