# A027230 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 7
5 16
6 27
7 66
8 109
9 279
10 469
11 1201
12 2119
13 5242
14 9607
15 23133
16 43727
17 103015
18 199819
19 462269
20 916631
21 2132121
22 4220267
23 10010203
24 19497608
25 47042042
26 90370622
27 221337726
28 420136173
29 1042837195
30 1958787580