login

A264414 as a simple table

na(n)
01
110
2-45
3450
4-5535
575600
6-1106100
716953750
8-268652880
94365638550
10-72354858300
111218356280000
12-20784495119850
13358457180010750
14-6239532583193625
15109476057598087500
16-1934128026918961515
1734378012275668994150
18-614328464414815220025
1911030366153872043358750
20-198899407327466712808800
213600377821710426377668500

[1,10,-45,450,-5535,75600,-1106100,16953750,
 -268652880,4365638550,-72354858300,1218356280000,
 -20784495119850,358457180010750,-6239532583193625,
 109476057598087500,-1934128026918961515,
 34378012275668994150,-614328464414815220025,
 11030366153872043358750,-198899407327466712808800,
 3600377821710426377668500]