# A077176 (b-file synthesized from sequence entry)
1 2
2 6
3 30
4 210
5 6006
6 67830
7 690690
8 35303730
9 3383531970
10 29248649430
11 1846079805570
12 220495674290430
13 15231748284963210
14 328001307608664690
15 58030069605260142390
16 4938238739984380540710
17 182365421703667931839110