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A286778 as a simple table

na(n)
00
12
222
3142
4734
53390
614718
761694
8253438
91029118
104151294
1116683006
1266904062
13267993086
141072791550
154292935678
1617175543806
1768710301694
18274858508286
191099470733310
204397960527870
2117592005689342
2270368366690302
23281474188181502
241125898262675454
254503596204818430
2618014391395942398

[0,2,22,142,734,3390,14718,61694,253438,1029118,
 4151294,16683006,66904062,267993086,1072791550,
 4292935678,17175543806,68710301694,274858508286,
 1099470733310,4397960527870,17592005689342,
 70368366690302,281474188181502,1125898262675454,
 4503596204818430,18014391395942398]