# A108011 (b-file synthesized from sequence entry)
0 1
1 5000
2 4326800
3 1477456920
4 270763898400
5 31024486169000
6 2439561469473200
7 140246363872492600
8 6171839608065765440
9 215325931317895904200
10 6122691791516444942800
11 145105657845410234663000
12 2919979584341815608200800
13 50677554682035957782051304