# A121413 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 30
4 335
5 4984
6 92652
7 2065146
8 53636520
9 1589752230
10 52926799310
11 1954793723688
12 79297921097850
13 3504206787532290
14 167533486104374420
15 8615231103973721610
16 474145710046504872894
17 27806642356199323970739