# A087719 (b-file synthesized from sequence entry)
1 15
2 27
3 57
4 135
5 345
6 927
7 2577
8 7335
9 21225
10 62127
11 183297
12 543735
13 1618905
14 4832127
15 14447217
16 43243335
17 129533385
18 388206927
19 1163834337
20 3489930135
21 10466644665
22 31393642527
23 94168344657
24 282479868135