login

A143048 as a simple table

na(n)
01
11
2-5
3-15
4165
5630
6-8151
7-33780
8474045
92052495
10-30206330
11-134392230
122040588775
139248893360
14-143569282680
15-659546365020
1610407737293965
1748303692377425
18-771991701692175
19-3611789245335285
2058311219888996170
21274581478640096340

[1,1,-5,-15,165,630,-8151,-33780,474045,2052495,
 -30206330,-134392230,2040588775,9248893360,
 -143569282680,-659546365020,10407737293965,
 48303692377425,-771991701692175,-3611789245335285,
 58311219888996170,274581478640096340]