# A081786 (b-file synthesized from sequence entry)
0 1
1 21
2 1591
3 5623795
4 60586207387643
5 11771746654268128293298294264
6 223879928814222731378358322195036233470100990978181612407
7 60370531495558553873551440308434816125184142701829318337696802178075590153432959525193229753905998692773283506988