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.

A182042 Triangle T(n,k), read by rows, given by (0, 2, -1/2, 1/2, 0, 0, 0, 0, 0, 0, 0, ...) DELTA (3, 0, -3/2, 3/2, 0, 0, 0, 0, 0, 0, 0, ...) where DELTA is the operator defined in A084938.

Table of values

n a(n)
0 1
1 0
2 3
3 0
4 6
5 9
6 0
7 9
8 27
9 27
10 0
11 12
12 54
13 108
14 81
15 0
16 15
17 90
18 270
19 405
20 243
21 0
22 18
23 135
24 540
25 1215
26 1458
27 729
28 0
29 21
30 189
31 945
32 2835
33 5103
34 5103
35 2187
36 0
37 24
38 252
39 1512
40 5670
41 13608
42 20412
43 17496
44 6561
45 0
46 27
47 324
48 2268
49 10206
50 30618
51 61236
52 78732
53 59049
54 19683

List of values

[1, 0, 3, 0, 6, 9, 0, 9, 27, 27, 0, 12, 54, 108, 81, 0, 15, 90, 270, 405, 243, 0, 18, 135, 540, 1215, 1458, 729, 0, 21, 189, 945, 2835, 5103, 5103, 2187, 0, 24, 252, 1512, 5670, 13608, 20412, 17496, 6561, 0, 27, 324, 2268, 10206, 30618, 61236, 78732, 59049, 19683]