# A000348 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 4
5 12
6 9
7 72
8 160
9 428
10 2434
11 3011
12 10337
13 126962
14 264182
15 783550
16 5004266
17 34340141
18 176302123
19 1188146567
20 4457147441
21 7845512385
22 132253267889
23 1004345333251
24 3865703506342
25 40719018858150
26 213982561376958
27 1266218151414286
28 10976172953868304
29 59767467676582641
30 512279001476451101
31 6189067229056357433