# A169797 (b-file synthesized from sequence entry)
0 1
1 10
2 65
3 340
4 1550
5 6412
6 24650
7 89440
8 309605
9 1030490
10 3317445
11 10377180
12 31655820
13 94451520
14 276313200
15 794169792
16 2246410560
17 6262748160
18 17230138880
19 46831339520
20 125870737408
21 334826700800
22 882159984640
23 2303540756480
24 5965195018240
25 15327324667904