login

A121868 as a simple table

na(n)
00
1-1
2-1
30
45
523
674
7161
8-57
9-3466
10-27361
11-155397
12-687688
13-1888525
144974059
15134695952
161400820897
1711055147275
1870658948426
19327448854237
20223871274083
21-19116044475298
22-314203665206509
23-3562429698724513
24-33024521386113840
25-250403183401213513

[0,-1,-1,0,5,23,74,161,-57,-3466,-27361,-155397,
 -687688,-1888525,4974059,134695952,1400820897,
 11055147275,70658948426,327448854237,223871274083,
 -19116044475298,-314203665206509,
 -3562429698724513,-33024521386113840,
 -250403183401213513]