# A277863 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 12
5 32
6 82
7 227
8 629
9 1840
10 5456
11 16701
12 51939
13 164688
14 529070
15 1722271
16 5664786
17 18813360
18 62996841
19 212533216
20 721792751
21 2466135364
22 8471967927
23 29249059281
24 101440962284
25 353289339914
26 1235154230047
27 4333718587339
28 15255879756019
29 53870521140911