# A056275 (b-file synthesized from sequence entry)
1 1
2 1
3 4
4 13
5 50
6 181
7 714
8 2780
9 11046
10 43895
11 175274
12 699875
13 2798250
14 11188191
15 44747380
16 178970560
17 715860650
18 2863365834
19 11453377194
20 45813202675
21 183252461532
22 733008625151
23 2932033104554
24 11728127521060
25 46912504507000
26 187649998452735
27 750599971438464