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.

A028245 a(n) = 5^(n-1) - 4*4^(n-1) + 6*3^(n-1) - 4*2^(n-1) + 1 (essentially Stirling numbers of second kind).

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 24
6 360
7 3360
8 25200
9 166824
10 1020600
11 5921520
12 33105600
13 180204024
14 961800840
15 5058406080
16 26308573200
17 135666039624
18 694994293080
19 3542142833040
20 17980946172000
21 90990301641624

List of values

[0, 0, 0, 0, 24, 360, 3360, 25200, 166824, 1020600, 5921520, 33105600, 180204024, 961800840, 5058406080, 26308573200, 135666039624, 694994293080, 3542142833040, 17980946172000, 90990301641624]