# A136753 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 4
5 9
6 21
7 52
8 134
9 355
10 955
11 2590
12 7052
13 19246
14 52638
15 144368
16 397468
17 1099720
18 3060936
19 8577496
20 24210808
21 68843806
22 197176726
23 568585576
24 1649739332
25 4812731846
26 14105205846
27 41498665884
28 122469937048