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A054387 as a simple table

na(n)
00
1-2
21
31
41
55
67
77
833
9429
10715
112431
124199
1329393
1452003
15185725
16111435
171938969
1817678835
1921607465
20119409675
21883631595
22109402007
236116566755
2411435320455
2557176602275
26322476036831
271215486600363
282295919134019

[0,-2,1,1,1,5,7,7,33,429,715,2431,4199,29393,
 52003,185725,111435,1938969,17678835,21607465,
 119409675,883631595,109402007,6116566755,
 11435320455,57176602275,322476036831,
 1215486600363,2295919134019]