# A140588 (b-file synthesized from sequence entry)
0 0
1 1
2 2
3 10
4 45
5 260
6 1624
7 11401
8 86940
9 718998
10 6378625
11 60392730
12 606757968
13 6441153821
14 71969044394
15 843604712450
16 10343900299089
17 132335197076988
18 1762486467114856
19 24386695159343317
20 349913930462291580
21 5197925007651796446
22 79818442443640537653