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A217274 as a simple table

na(n)
00
11
27
335
4154
5637
62548
79996
838759
9149205
10571781
112184910
128333871
1331750824
14120875944
15459957169
161749692735
176654580387
1825306064602
1996226175941
20365880389868
211391138718116
225289228800247
2320109822277181
2476457523763621
25290689756066542

[0,1,7,35,154,637,2548,9996,38759,149205,571781,
 2184910,8333871,31750824,120875944,459957169,
 1749692735,6654580387,25306064602,96226175941,
 365880389868,1391138718116,5289228800247,
 20109822277181,76457523763621,290689756066542]