login

A098339 as a simple table

na(n)
01
13
25
3-9
4-111
5-477
6-1051
71095
821793
9106947
10276165
11-71145
12-4712655
13-26071965
14-76452315
15-29748249
161045547073
176564746115
1821507513221
1919922192439
20-230801512751
21-1674387214173
22-6072718662555

[1,3,5,-9,-111,-477,-1051,1095,21793,106947,
 276165,-71145,-4712655,-26071965,-76452315,
 -29748249,1045547073,6564746115,21507513221,
 19922192439,-230801512751,-1674387214173,
 -6072718662555]