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A013353 as a simple table

na(n)
00
13
215
3273
423055
51601193
6155341095
724206437713
84645592799135
91094690215087833
10324803673636221175
11116133164181717551553
1248989776965837082135215
1324245825813770391843700873

[0,3,15,273,23055,1601193,155341095,24206437713,
 4645592799135,1094690215087833,324803673636221175,
 116133164181717551553,48989776965837082135215,
 24245825813770391843700873]