# A301455 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 16
4 74
5 360
6 1840
7 9698
8 52409
9 288697
10 1615275
11 9153850
12 52434770
13 303104532
14 1765920785
15 10358843904
16 61129390652
17 362650003202
18 2161590275029
19 12938838382316
20 77745063802045
21 468760264760369
22 2835272729215565
23 17198394229862818
24 104598950726341920
25 637709136315071504