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A013336 as a simple table

na(n)
00
11
20
33
4-4
545
6-180
71743
8-13704
9135705
10-1613160
1118065883
12-276222604
133655783365
14-65652672540
151034667581223
16-20865280018704
17387014665823025
18-8593188683674320
19184059142857923763
20-4464138375366282004
21108277288526211374685
22-2858191345505462554500

[0,1,0,3,-4,45,-180,1743,-13704,135705,-1613160,
 18065883,-276222604,3655783365,-65652672540,
 1034667581223,-20865280018704,387014665823025,
 -8593188683674320,184059142857923763,
 -4464138375366282004,108277288526211374685,
 -2858191345505462554500]