# A149853 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 13
4 35
5 104
6 318
7 1014
8 3256
9 10543
10 34937
11 116848
12 397242
13 1354804
14 4641335
15 16053619
16 55784113
17 195466771
18 686258063
19 2416219435
20 8551265471
21 30349165784
22 108247450688
23 386615499598
24 1383536609787
25 4967118466568
26 17866856266359
27 64477119071662
28 232917119736270
29 842589117795023
30 3054850488851820