# A321245 (b-file synthesized from sequence entry)
1 0
2 1
3 1155
4 759759
5 103786510
6 4767856260
7 107118740001
8 1465350136810
9 13956101513964
10 100946621623995
11 588405869207695
12 2882842751900001
13 12245455022841690
14 46164185630256694
15 157281327978056205
16 491245336843482180
17 1422828159652548376
18 3857444027819847045
19 9864873410828916699
20 23951146853875652515
21 55509091777214287590