login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A117259 as a simple table

na(n)
01
11
2-2
332
4-2560
5917504
6-1409286144
79070970929152
8-241505530017742848
926378844025404658810880
10-11755594669932654094842855424
1121291459481433341027538627037495296
12-156279993920424129009046403691280672489472

[1,1,-2,32,-2560,917504,-1409286144,9070970929152,
 -241505530017742848,26378844025404658810880,
 -11755594669932654094842855424,
 21291459481433341027538627037495296,
 -156279993920424129009046403691280672489472]