# A137810 (b-file synthesized from sequence entry)
0 1
1 7
2 63
3 2047
4 1048575
5 137438953471
6 1180591620717411303423
7 43556142965880123323311949751266331066367
8 29642774844752946028434172162224104410437116074403984394101141506025761187823615