# A143360 (b-file synthesized from sequence entry)
1 1
2 3
3 5
4 12
5 20
6 45
7 77
8 168
9 294
10 630
11 1122
12 2376
13 4290
14 9009
15 16445
16 34320
17 63206
18 131274
19 243542
20 503880
21 940576
22 1939938
23 3640210
24 7488432
25 14115100
26 28973100
27 54826020
28 112326480
29 213286590
30 436268025
31 830905245
32 1697168160
33 3241119750