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A302705 as a simple table

na(n)
01
11
23
311
443
5171
6677
72637
810035
937171
10134009
11472785
121655845
135910373
1422254507
1590625475
16396822579
171803795507
188151776201
1935314777505
20142395796689
21518352934225
221625522953935
233944383216263
244604242439037
25-17114536692099
26-114353748666873
27-52384917067153
284112292989447275
2942810794269242411
30290607272326013813

[1,1,3,11,43,171,677,2637,10035,37171,134009,
 472785,1655845,5910373,22254507,90625475,
 396822579,1803795507,8151776201,35314777505,
 142395796689,518352934225,1625522953935,
 3944383216263,4604242439037,-17114536692099,
 -114353748666873,-52384917067153,4112292989447275,
 42810794269242411,290607272326013813]