# A323672 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 11
4 50
5 267
6 1633
7 11195
8 84745
9 700332
10 6262087
11 60146704
12 616841371
13 6720592647
14 77453291594
15 940701503518
16 12001369992614
17 160373548837863
18 2238995849944224
19 32584082576638311
20 493289434851850445
21 7754247825363510168
22 126354223534523911670
23 2131014061115010861375