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A022691 as a simple table

na(n)
01
1-31
2403
3-2666
47254
517329
6-187488
7384865
8916050
9-4785594
10267220
1123607058
128499735
13-138349218
14-198872750
151055690151
161063384258
17-4561862102
18-6887455628
199053067640
2053042071422

[1,-31,403,-2666,7254,17329,-187488,384865,916050,
 -4785594,267220,23607058,8499735,-138349218,
 -198872750,1055690151,1063384258,-4561862102,
 -6887455628,9053067640,53042071422]