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A007878 as a simple table

na(n)
11
22
35
416
559
6246
71103
85247
926059
10133881
11706799
123815311
1320979619
14117178725
15663316190
163798697446
1721976689397

[1,2,5,16,59,246,1103,5247,26059,133881,706799,
 3815311,20979619,117178725,663316190,3798697446,
 21976689397]