# A049156 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 3
5 13
6 43
7 115
8 293
9 837
10 2709
11 8945
12 28419
13 87857
14 273911
15 877575
16 2864865
17 9375817
18 30567385
19 99663761
20 326774715
21 1078769829
22 3576918307
23 11882250891
24 39523870597
25 131743569949
26 440333991293
27 1475535659073