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.

A110180 Triangle of generalized central trinomial coefficients.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 3
8 1
9 1
10 1
11 7
12 5
13 1
14 1
15 1
16 19
17 13
18 7
19 1
20 1
21 1
22 51
23 49
24 19
25 9
26 1
27 1
28 1
29 141
30 161
31 91
32 25
33 11
34 1
35 1
36 1
37 393
38 581
39 331
40 145
41 31
42 13
43 1
44 1
45 1
46 1107
47 2045
48 1441
49 561
50 211
51 37
52 15
53 1
54 1
55 1
56 3139
57 7393
58 5797
59 2841
60 851
61 289
62 43
63 17
64 1
65 1

List of values

[1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 7, 5, 1, 1, 1, 19, 13, 7, 1, 1, 1, 51, 49, 19, 9, 1, 1, 1, 141, 161, 91, 25, 11, 1, 1, 1, 393, 581, 331, 145, 31, 13, 1, 1, 1, 1107, 2045, 1441, 561, 211, 37, 15, 1, 1, 1, 3139, 7393, 5797, 2841, 851, 289, 43, 17, 1, 1]