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A007171 as a simple table

na(n)
11
22
34
416
589
6579
73989
828630
9210865
101584308
1112091902
1293483120
13730503054
145760438853
1545780146521
16366304396662
172948412461685
1823857049238752
19193944769559906
201583294537879106
2112974430494985262
22106685110047676402

[1,2,4,16,89,579,3989,28630,210865,1584308,
 12091902,93483120,730503054,5760438853,
 45780146521,366304396662,2948412461685,
 23857049238752,193944769559906,1583294537879106,
 12974430494985262,106685110047676402]