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.

A238156 Triangle T(n,k), 0<=k<=n, read by rows, given by (0, 1, 0, 0, 0, 0, 0, 0, 0, ...) DELTA (2, -1/2, 1/2, 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 2
3 0
4 2
5 3
6 0
7 2
8 7
9 4
10 0
11 2
12 11
13 16
14 5
15 0
16 2
17 15
18 36
19 30
20 6
21 0
22 2
23 19
24 64
25 91
26 50
27 7
28 0
29 2
30 23
31 100
32 204
33 196
34 77
35 8
36 0
37 2
38 27
39 144
40 385
41 540
42 378
43 112
44 9
45 0
46 2
47 31
48 196
49 650
50 1210
51 1254
52 672
53 156
54 10
55 0
56 2
57 35
58 256
59 1015
60 2366
61 3289
62 2640
63 1122
64 210
65 11

List of values

[1, 0, 2, 0, 2, 3, 0, 2, 7, 4, 0, 2, 11, 16, 5, 0, 2, 15, 36, 30, 6, 0, 2, 19, 64, 91, 50, 7, 0, 2, 23, 100, 204, 196, 77, 8, 0, 2, 27, 144, 385, 540, 378, 112, 9, 0, 2, 31, 196, 650, 1210, 1254, 672, 156, 10, 0, 2, 35, 256, 1015, 2366, 3289, 2640, 1122, 210, 11]