# A006174 (b-file synthesized from sequence entry)
1 6
2 27
3 488
4 7974
5 149796
6 2725447
7 56970432
8 1151053821
9 25279412332
10 543871341927
11 12411512060544
12 278163517356594
13 6498314231705568
14 149846653983570795
15 3565206002960088128
16 84045618111578025105