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.

A326858 E.g.f.: Product_{k>=1} (1 + x^(3*k-2) / (3*k-2)).

Table of values

n a(n)
0 1
1 1
2 0
3 0
4 6
5 30
6 0
7 720
8 5760
9 0
10 362880
11 5417280
12 17107200
13 479001600
14 8885479680
15 32691859200
16 1307674368000
17 34151856076800
18 214585052774400
19 6402373705728000
20 192796754895360000
21 1542202547010048000
22 55105230485200896000
23 1944933030182596608000

List of values

[1, 1, 0, 0, 6, 30, 0, 720, 5760, 0, 362880, 5417280, 17107200, 479001600, 8885479680, 32691859200, 1307674368000, 34151856076800, 214585052774400, 6402373705728000, 192796754895360000, 1542202547010048000, 55105230485200896000, 1944933030182596608000]