# A151430 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 7
4 19
5 61
6 224
7 771
8 2855
9 11005
10 41963
11 165661
12 664443
13 2674101
14 10955892
15 45281419
16 188288455
17 790957165
18 3343062477
19 14209485769
20 60792612875
21 261330644741
22 1128597807923
23 4896682653677
24 21327006074731
25 93233880458581
26 409028951228459
27 1800105977084221
28 7946053746358811