# A173659 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 1
4 4
5 9
6 33
7 79
8 250
9 647
10 1914
11 5157
12 14797
13 40663
14 115036
15 319098
16 896896
17 2498663
18 7002446
19 19546383
20 54706009
21 152839003
22 427510168
23 1194858679
24 3341293220
25 9340298995
26 26116085175
27 73010960431
28 204132824544
29 570699926244
30 1595594838888