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A278008 as a simple table

na(n)
10
26
330
4198
51230
67734
748510
8304422
91910190
1011986326
1175213150
12471956358
132961486990
1418583085814
15116607324990
16731701311462
174591365157230
1828810436277846
19180783102647070
201134399003458118
217118259838467150

[0,6,30,198,1230,7734,48510,304422,1910190,
 11986326,75213150,471956358,2961486990,
 18583085814,116607324990,731701311462,
 4591365157230,28810436277846,180783102647070,
 1134399003458118,7118259838467150]