# A174477 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 20
4 58
5 136
6 348
7 788
8 1856
9 4094
10 9160
11 19716
12 42692
13 90152
14 190628
15 396800
16 825170
17 1698432
18 3490484
19 7124396
20 14517896
21 29450384
22 59654636
23 120472948
24 243010964
25 489208250
26 983952448
27 1976442696
28 3967448276
29 7957317632