# A148833 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 27
5 88
6 330
7 1233
8 4757
9 19087
10 77084
11 318057
12 1332943
13 5633800
14 24135510
15 104270601
16 453822577
17 1992313735
18 8796237670
19 39076873799
20 174584332753
21 783445597358
22 3532945065726
23 15995372227192
24 72689772282113
25 331560783129859
26 1517023330197527
27 6962862373775283
28 32048845700046927