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A357836 as a simple table

na(n)
00
10
21
3-3
411
5-49
6259
7-1589
811109
9-87171
10758121
11-7229859
1274905467
13-836159961
149980000667
15-126422745813
161686902233653
17-23512989735963
18338917341235473
19-4982536435536387
2073087736506615467
21-1025163078325255233
2212286912220375608179

[0,0,1,-3,11,-49,259,-1589,11109,-87171,758121,
 -7229859,74905467,-836159961,9980000667,
 -126422745813,1686902233653,-23512989735963,
 338917341235473,-4982536435536387,
 73087736506615467,-1025163078325255233,
 12286912220375608179]