# A020551 (b-file synthesized from sequence entry)
0 5
1 5
2 29
3 1405
4 333505
5 207403201
6 268740115201
7 645241358764801
8 2642908298242867201
9 17340121313167797043201
10 173401213127767018168320001
11 2538767161403063306670366720001
12 52643875858853822296270152007680001