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.

A201635 Triangle formed by T(n,n) = (-1)^n*Sum_{j=0..n} C(-n,j), T(n,k) = Sum_{j=0..k} T(n-1,j) for k=0..n-1, and n>=0, read by rows.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 1
5 2
6 1
7 2
8 4
9 6
10 1
11 3
12 7
13 13
14 22
15 1
16 4
17 11
18 24
19 46
20 80
21 1
22 5
23 16
24 40
25 86
26 166
27 296
28 1
29 6
30 22
31 62
32 148
33 314
34 610
35 1106
36 1
37 7
38 29
39 91
40 239
41 553
42 1163
43 2269
44 4166
45 1
46 8
47 37
48 128
49 367
50 920
51 2083
52 4352
53 8518
54 15792
55 1
56 9
57 46
58 174
59 541
60 1461
61 3544
62 7896

List of values

[1, 1, 0, 1, 1, 2, 1, 2, 4, 6, 1, 3, 7, 13, 22, 1, 4, 11, 24, 46, 80, 1, 5, 16, 40, 86, 166, 296, 1, 6, 22, 62, 148, 314, 610, 1106, 1, 7, 29, 91, 239, 553, 1163, 2269, 4166, 1, 8, 37, 128, 367, 920, 2083, 4352, 8518, 15792, 1, 9, 46, 174, 541, 1461, 3544, 7896]