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A166891 as a simple table

na(n)
11
22
39
478
51038
618968
7443595
812681960
9429244197
1016801151910
11746998729887
1237200237947376
132051666003699226
14124156748403386646
158180285024067867345
16582970677419310149580
1744684461723038752605932

[1,2,9,78,1038,18968,443595,12681960,429244197,
 16801151910,746998729887,37200237947376,
 2051666003699226,124156748403386646,
 8180285024067867345,582970677419310149580,
 44684461723038752605932]