# A375505 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 25
5 136
6 923
7 7557
8 72767
9 807896
10 10180274
11 143741731
12 2250285510
13 38715864581
14 726596076239
15 14780041925011
16 324070919795226
17 7622475922806634
18 191515981769983447
19 5120787153821434468
20 145222986971201544125
21 4355043425181710241819
22 137728970544635824065325