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A001026 as a simple table

na(n)
01
117
2289
34913
483521
51419857
624137569
7410338673
86975757441
9118587876497
102015993900449
1134271896307633
12582622237229761
139904578032905937
14168377826559400929
152862423051509815793
1648661191875666868481
17827240261886336764177
1814063084452067724991009
19239072435685151324847153
204064231406647572522401601

[1,17,289,4913,83521,1419857,24137569,410338673,
 6975757441,118587876497,2015993900449,
 34271896307633,582622237229761,9904578032905937,
 168377826559400929,2862423051509815793,
 48661191875666868481,827240261886336764177,
 14063084452067724991009,239072435685151324847153,
 4064231406647572522401601]