# A289996 (b-file synthesized from sequence entry)
0 1
1 0
2 1
3 6
4 39
5 295
6 2601
7 26384
8 303669
9 3918008
10 56085221
11 882877516
12 15166881630
13 282452177349
14 5669156051312
15 122010117338339
16 2802966544097522
17 68461924440931437
18 1771518733188575012
19 48409312348609160524
20 1393032780114633730273
21 42104441726010747569549
22 1333580366505429790830837