# A149445 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 13
4 48
5 174
6 664
7 2511
8 9704
9 37446
10 146328
11 571254
12 2245680
13 8828364
14 34861968
15 137681413
16 545275968
17 2160151774
18 8574035128
19 34041458854
20 135331020496
21 538160983688
22 2142066529840
23 8528345610682
24 33977249476432
25 135397971935652
26 539825087330960
27 2152684737685952