# A016230 (b-file synthesized from sequence entry)
0 1
1 13
2 122
3 1010
4 7851
5 58863
6 431572
7 3118660
8 22318901
9 158673713
10 1122923022
11 7921496310
12 55755649951
13 391815428563
14 2750337394472
15 19290508733960
16 135224296001001
17 947523746323413
18 6637434595845922