# A163177 (b-file synthesized from sequence entry)
0 1
1 26
2 650
3 16250
4 405925
5 10140000
6 253297200
7 6327360000
8 158057355300
9 3948270300000
10 98627731207200
11 2463719204700000
12 61543667742382800
13 1537359871188960000
14 38403225875902867200
15 959311990194611040000