login

A088994 as a simple table

na(n)
01
11
20
32
48
524
6144
7720
88448
964512
10576000
115529600
1274972160
13887546880
1411285084160
15168318259200
162843121254400
1744790578380800
18747955947110400
1913937735643955200
20287117441217331200
215838778006909747200
22120976472421826560000
232712639152754878054400

[1,1,0,2,8,24,144,720,8448,64512,576000,5529600,
 74972160,887546880,11285084160,168318259200,
 2843121254400,44790578380800,747955947110400,
 13937735643955200,287117441217331200,
 5838778006909747200,120976472421826560000,
 2712639152754878054400]