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.

A121314 Triangle T(n,k), 0 <= k <= n, read by rows given by [0, 1, 0, 0, 0, 0, ...] DELTA [1, 0, 1, 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 1
3 0
4 1
5 1
6 0
7 1
8 3
9 1
10 0
11 1
12 5
13 6
14 1
15 0
16 1
17 7
18 15
19 10
20 1
21 0
22 1
23 9
24 28
25 35
26 15
27 1
28 0
29 1
30 11
31 45
32 84
33 70
34 21
35 1
36 0
37 1
38 13
39 66
40 165
41 210
42 126
43 28
44 1
45 0
46 1
47 15
48 91
49 286
50 495
51 462
52 210
53 36
54 1

List of values

[1, 0, 1, 0, 1, 1, 0, 1, 3, 1, 0, 1, 5, 6, 1, 0, 1, 7, 15, 10, 1, 0, 1, 9, 28, 35, 15, 1, 0, 1, 11, 45, 84, 70, 21, 1, 0, 1, 13, 66, 165, 210, 126, 28, 1, 0, 1, 15, 91, 286, 495, 462, 210, 36, 1]