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.

A093964 a(n) = Sum_{k=1..n} k*k!*C(n,k).

Table of values

n a(n)
0 0
1 1
2 6
3 33
4 196
5 1305
6 9786
7 82201
8 767208
9 7891281
10 88776910
11 1085051121
12 14322674796
13 203121569833
14 3080677142466
15 49764784609065
16 853110593298256
17 15469738758475041
18 295858753755835158
19 5951981987323272001
20 125652953065713520020
21 2777591594084193600441

List of values

[0, 1, 6, 33, 196, 1305, 9786, 82201, 767208, 7891281, 88776910, 1085051121, 14322674796, 203121569833, 3080677142466, 49764784609065, 853110593298256, 15469738758475041, 295858753755835158, 5951981987323272001, 125652953065713520020, 2777591594084193600441]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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