login

A013334 as a simple table

na(n)
00
11
20
30
4-4
50
60
70
8-1104
9-5040
100
11184800
12-1784704
13-39948480
14-201801600
152969366400
1624788541696
17-621491320320
18-12903078988800
1920131497484800
202944178363780096
218434762785469440
22-1051002016730265600
23-14118259471683840000
24255660771276061802496

[0,1,0,0,-4,0,0,0,-1104,-5040,0,184800,-1784704,
 -39948480,-201801600,2969366400,24788541696,
 -621491320320,-12903078988800,20131497484800,
 2944178363780096,8434762785469440,
 -1051002016730265600,-14118259471683840000,
 255660771276061802496]