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.

A142704 A generalized factorial level recursion of a Padovan type: a(n) = b(n)*(a(n-2) + a(n-3)) with b(n) = b(n-1) + k and k=2.

Table of values

n a(n)
0 0
1 1
2 1
3 6
4 16
5 70
6 264
7 1204
8 5344
9 26424
10 130960
11 698896
12 3777216
13 21576256
14 125331136
15 760604160
16 4701036544
17 30121800064
18 196619065344
19 1323267791104
20 9069634616320
21 63835247970816
22 457287705926656

List of values

[0, 1, 1, 6, 16, 70, 264, 1204, 5344, 26424, 130960, 698896, 3777216, 21576256, 125331136, 760604160, 4701036544, 30121800064, 196619065344, 1323267791104, 9069634616320, 63835247970816, 457287705926656]