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.

A378676 a(n) = J(n) * J(n+2) where J(n) = Jacobsthal(n) = A001045(n).

Table of values

n a(n)
0 0
1 3
2 5
3 33
4 105
5 473
6 1785
7 7353
8 28985
9 116793
10 465465
11 1865273
12 7454265
13 29830713
14 119295545
15 477236793
16 1908837945
17 7635570233
18 30541844025
19 122168249913
20 488671252025
21 1954688503353
22 7818747022905
23 31275002072633
24 125099980328505
25 500399977238073
26 2001599797104185
27 8006399412112953
28 32025597201059385

List of values

[0, 3, 5, 33, 105, 473, 1785, 7353, 28985, 116793, 465465, 1865273, 7454265, 29830713, 119295545, 477236793, 1908837945, 7635570233, 30541844025, 122168249913, 488671252025, 1954688503353, 7818747022905, 31275002072633, 125099980328505, 500399977238073, 2001599797104185, 8006399412112953, 32025597201059385]