# A148318 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 14
5 39
6 125
7 406
8 1377
9 4764
10 17164
11 62469
12 231943
13 874618
14 3351026
15 12947298
16 50620338
17 199901919
18 795986823
19 3191015723
20 12892664497
21 52428537370
22 214363751334
23 881152162009
24 3641565202414
25 15117031897106
26 63011652669118
27 263740777264448
28 1108178456066511
29 4671918165041722