# A081020 (b-file synthesized from sequence entry)
0 1
1 1
2 9
3 195
4 7665
5 473445
6 42110145
7 5085535455
8 799363389825
9 158394573362025
10 38590445989920825
11 11330437552124766075
12 3943491069629507821425
13 1604701708312172643298125
14 754577935727586683368280625
15 405920422302165926006881404375