# A104747 (b-file synthesized from sequence entry)
1 1
2 4
3 12
4 33
5 87
6 222
7 550
8 1327
9 3129
10 7236
11 16464
12 36957
13 82027
14 180346
15 393354
16 852123
17 1835181
18 3932352
19 8388820
20 17826025
21 37748991
22 79692054
23 167772462
24 352321863
25 738197857
26 1543504252
27 3221225880
28 6710886837