# A027209 (b-file synthesized from sequence entry)
2 1
3 7
4 34
5 173
6 741
7 3549
8 14670
9 68683
10 279715
11 1294598
12 5233060
13 24052965
14 96822587
15 442972139
16 1778697948
17 8110611295
18 32516501991
19 147897243768
20 592346459071
21 2688895275974
22 10762289869782
23 48776681304283
24 195143578562778
25 883272843800993
26 3532739195660162