# A148568 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 6
4 19
5 48
6 163
7 458
8 1623
9 4873
10 17694
11 55688
12 205205
13 667727
14 2489066
15 8303744
16 31230747
17 106263877
18 402383332
19 1391009865
20 5296310843
21 18547893105
22 70941590289
23 251157988654
24 964231083001
25 3445375249027
26 13269521569994
27 47791310089513
28 184566314074674
29 669325853528842
30 2590981483348106