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A267968 as a simple table

na(n)
01
11
28
3648
4663552
510368000000
62902376448000000
716731622649806848000000
82245680377810414777401344000000
97830203310981140781182893575634944000000
10783020331098114078118289357563494400000000000000000
112457453226667794121573260254679367673480373862400000000000000000

[1,1,8,648,663552,10368000000,2902376448000000,
 16731622649806848000000,
 2245680377810414777401344000000,
 7830203310981140781182893575634944000000,
 78302033109811407811828935756349440000000000000000\
 0,
 24574532266677941215732602546793676734803738624000\
 00000000000000]