# A028307 (b-file synthesized from sequence entry)
1 1
2 3
3 8
4 20
5 43
6 98
7 212
8 465
9 1000
10 2144
11 4497
12 9504
13 19872
14 41455
15 85356
16 178630
17 363467
18 757085
19 1541998
20 3183600
21 6515066
22 13357593
23 27432649
24 55914902
25 114683858
26 233517515
27 478061719
28 972479046
29 1986013932