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A009051 as a simple table

na(n)
01
1-1
217
3-457
419777
5-1305489
6122670033
7-15462740633
82502900454401
9-504155298072609
10123438576028985873
11-36064963500185608553
1212385279694301347665473
13-4936243039568368083279793
142258619438301840395444067537
15-1175352020113183347337766918201

[1,-1,17,-457,19777,-1305489,122670033,
 -15462740633,2502900454401,-504155298072609,
 123438576028985873,-36064963500185608553,
 12385279694301347665473,
 -4936243039568368083279793,
 2258619438301840395444067537,
 -1175352020113183347337766918201]