# A069354 (b-file synthesized from sequence entry)
1 2
2 3
3 6
4 15
5 66
6 210
7 715
8 7315
9 38571
10 254541
11 728365
12 11243155
13 58524466
14 812646121
15 5163068911
16 58720148851
17 555409903686
18 4339149420606
19 69322940121436
20 490005293940085
21 5819629108725510
22 76622240600506315