# A346374 (b-file synthesized from sequence entry)
0 1
1 3
2 15
3 85
4 511
5 3221
6 21339
7 149969
8 1133215
9 9343525
10 85089883
11 860979329
12 9665236335
13 119534610885
14 1613648163963
15 23564301925713
16 369437215969599
17 6180713141601765
18 109812899448776475
19 2063836219057694753
20 40894619124091715983
21 851891564231714448133