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.

A374864 Obverse convolution (1)**A001950; see Comments.

Table of values

n a(n)
0 1
1 3
2 18
3 144
4 1584
5 22176
6 354816
7 6741504
8 141571584
9 3397718016
10 91738386432
11 2660413206528
12 85133222608896
13 2979662791311360
14 110247523278520320
15 4409900931140812800
16 185215839107914137600
17 8334712759856136192000
18 400066212473094537216000

List of values

[1, 3, 18, 144, 1584, 22176, 354816, 6741504, 141571584, 3397718016, 91738386432, 2660413206528, 85133222608896, 2979662791311360, 110247523278520320, 4409900931140812800, 185215839107914137600, 8334712759856136192000, 400066212473094537216000]