# A148775 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 23
5 70
6 230
7 739
8 2500
9 8370
10 28991
11 99970
12 349834
13 1226731
14 4351244
15 15435419
16 55192536
17 197505927
18 711400471
19 2564339924
20 9282708868
21 33648704177
22 122394201777
23 445702835088
24 1627270308113
25 5948153784327
26 21791000320845
27 79913206409881
28 293574773411370
29 1079615081555543
30 3976250333077778