# A305289 (b-file synthesized from sequence entry)
0 1
1 6
2 39
3 248
4 1559
5 9793
6 61529
7 386598
8 2429064
9 15262259
10 95895601
11 602529829
12 3785806568
13 23786924201
14 149457652642
15 939070127125
16 5900351625162
17 37073002638414
18 232936545470713
19 1463583480006755
20 9195966217409213
21 57779959822545404
22 363042194606444109
23 2281061383037441740