# A260091 (b-file synthesized from sequence entry)
0 1
1 0
2 1
3 2
4 9
5 44
6 265
7 1854
8 14833
9 133496
10 1334961
11 14684570
12 176214841
13 2290792932
14 32071101049
15 481066515734
16 2649865335040
17 14570246018686
18 80002336342276
19 438791546196382
20 2404416711392528
21 13164695578635648
22 72030936564665508
23 393911127182051942