# A287810 (b-file synthesized from sequence entry)
0 1
1 7
2 41
3 241
4 1417
5 8333
6 49005
7 288193
8 1694833
9 9967141
10 58615749
11 344713305
12 2027224169
13 11921900829
14 70111496093
15 412318635697
16 2424804301985
17 14260029486677
18 83861794865077
19 493182755657289
20 2900358033942041
21 17056713010658765
22 100308808541321741