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A006563 as a simple table

na(n)
01
10
244
3-174
4117256
5-7589530
62965194588
7-692238710870
8349381845013136
9-172725188707732914
10125191334490221307940
11-102149999612542557845422
12105262879332307879142908440
13-125296099002304850701565276234

[1,0,44,-174,117256,-7589530,2965194588,
 -692238710870,349381845013136,-172725188707732914,
 125191334490221307940,-102149999612542557845422,
 105262879332307879142908440,
 -125296099002304850701565276234]