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.

A141124 Hankel transform of a transform of Jacobsthal numbers.

Table of values

n a(n)
0 1
1 5
2 -9
3 -9
4 17
5 13
6 -25
7 -17
8 33
9 21
10 -41
11 -25
12 49
13 29
14 -57
15 -33
16 65
17 37
18 -73
19 -41
20 81
21 45
22 -89
23 -49
24 97
25 53
26 -105
27 -57
28 113
29 61
30 -121
31 -65
32 129
33 69
34 -137
35 -73
36 145
37 77
38 -153
39 -81
40 161
41 85
42 -169
43 -89
44 177
45 93
46 -185
47 -97
48 193
49 101
50 -201

List of values

[1, 5, -9, -9, 17, 13, -25, -17, 33, 21, -41, -25, 49, 29, -57, -33, 65, 37, -73, -41, 81, 45, -89, -49, 97, 53, -105, -57, 113, 61, -121, -65, 129, 69, -137, -73, 145, 77, -153, -81, 161, 85, -169, -89, 177, 93, -185, -97, 193, 101, -201]