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.

A099262 a(n) = (1/5040)*7^n + (1/240)*5^n + (1/72)*4^n + (1/16)*3^n + (11/60)*2^n + 53/144. Partial sum of Stirling numbers of second kind S(n,i), i=1..7 (i.e., a(n) = Sum_{i=1..7} S(n,i)).

Table of values

n a(n)
1 1
2 2
3 5
4 15
5 52
6 203
7 877
8 4139
9 21110
10 115179
11 665479
12 4030523
13 25343488
14 164029595
15 1084948961
16 7291973067
17 49582466986
18 339971207051
19 2345048898523
20 16244652278171
21 112871151708404
22 785938550025147
23 5480960778389365
24 38264428799608235
25 267342497477336542
26 1868866831126685483

List of values

[1, 2, 5, 15, 52, 203, 877, 4139, 21110, 115179, 665479, 4030523, 25343488, 164029595, 1084948961, 7291973067, 49582466986, 339971207051, 2345048898523, 16244652278171, 112871151708404, 785938550025147, 5480960778389365, 38264428799608235, 267342497477336542, 1868866831126685483]