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A360605 as a simple table

na(n)
00
11
20
31
40
5-3
68
7-31
872
9-195
10448
11-1071
122416
13-5475
1412120
15-26719
1658232
17-126243
18271824
19-582575
201242720
21-2640899
225592360
23-11806239
2424855080
25-52195843
26109362528
27-228667311
28477218512
29-994205475
302067947128
31-4294967391
328908080216

[0,1,0,1,0,-3,8,-31,72,-195,448,-1071,2416,-5475,
 12120,-26719,58232,-126243,271824,-582575,1242720,
 -2640899,5592360,-11806239,24855080,-52195843,
 109362528,-228667311,477218512,-994205475,
 2067947128,-4294967391,8908080216]