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.

A357683 a(n) = Sum_{k=0..floor(n/2)} n^k * |Stirling1(n,2*k)|.

Table of values

n a(n)
0 1
1 0
2 2
3 9
4 60
5 500
6 4920
7 55566
8 706720
9 9979200
10 154706760
11 2609691700
12 47547916416
13 929943488448
14 19421810408000
15 431196538865400
16 10137091700736000
17 251485260368396288
18 6563768030597826720
19 179746132716715050000
20 5152012082327932518400

List of values

[1, 0, 2, 9, 60, 500, 4920, 55566, 706720, 9979200, 154706760, 2609691700, 47547916416, 929943488448, 19421810408000, 431196538865400, 10137091700736000, 251485260368396288, 6563768030597826720, 179746132716715050000, 5152012082327932518400]

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

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