# A087223 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 14
4 36
5 96
6 254
7 676
8 1792
9 4756
10 12621
11 33490
12 88868
13 235818
14 625764
15 1660510
16 4406296
17 11692452
18 31026836
19 82332140
20 218474784
21 579739960
22 1538385398
23 4082226194
24 10832507040
25 28744906148
26 76276860598
27 202406625820