# A148304 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 13
5 38
6 122
7 397
8 1376
9 4923
10 17982
11 67758
12 259896
13 1013405
14 4024745
15 16169249
16 65806673
17 270873731
18 1125025971
19 4717447790
20 19937273837
21 84872224410
22 363857572296
23 1569265597535
24 6807643658516
25 29690975231140
26 130122867528065
27 572952460632662
28 2533547362638385