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A284647 as a simple table

na(n)
00
11
26
336
4231
51540
610440
771253
8487578
93339820
1022885995
11156848616
121075018896
137368190921
1450502074766
15346145696820
162372516138895
1716261462918828
18111457712887128
19763942497430365
205236139690949090
2135889035134544956
22245987105715037011

[0,1,6,36,231,1540,10440,71253,487578,3339820,
 22885995,156848616,1075018896,7368190921,
 50502074766,346145696820,2372516138895,
 16261462918828,111457712887128,763942497430365,
 5236139690949090,35889035134544956,
 245987105715037011]