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A066443 as a simple table

na(n)
01
17
261
3547
44921
544287
6398581
73587227
832285041
9290565367
102615088301
1123535794707
12211822152361
131906399371247
1417157594341221
15154418349070987
161389765141638881
1712507886274749927
18112570976472749341

[1,7,61,547,4921,44287,398581,3587227,32285041,
 290565367,2615088301,23535794707,211822152361,
 1906399371247,17157594341221,154418349070987,
 1389765141638881,12507886274749927,
 112570976472749341]