# A026870 (b-file synthesized from sequence entry)
4 1
5 14
6 125
7 911
8 5920
9 35785
10 205991
11 1145389
12 6208974
13 33019048
14 173020608
15 896198760
16 4599517316
17 23431544274
18 118650995097
19 597852859509
20 3000150410123
21 15004346987002
22 74827169741248
23 372278740384010
24 1848449139166668