# A152560 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 7
4 37
5 225
6 2707
7 47991
8 1566965
9 85002865
10 8346008131
11 1441358958439
12 452666387604933
13 257384373709193473
14 268828878795481175283
15 516988085848458847554135
16 1844678455777198460320221077