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A174313 as a simple table

na(n)
01
16
218
354
4162
5474
61398
74074
811898
934554
10100302
11290322
12839382
132422626
146984342
1520110806
1657851358
17166258242
18477419658
191369878582
203927963138
2111255743434
2232235116502
2392267490414
24263968559874
25754837708494
262157584748150
276164626128066
2817606866229010

[1,6,18,54,162,474,1398,4074,11898,34554,100302,
 290322,839382,2422626,6984342,20110806,57851358,
 166258242,477419658,1369878582,3927963138,
 11255743434,32235116502,92267490414,263968559874,
 754837708494,2157584748150,6164626128066,
 17606866229010]