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A176952 as a simple table

na(n)
01
10
2-3
3-10
4-25
5-47
6-41
7160
81093
93987
1010173
1114835
12-20271
13-249343
14-1106383
15-3335310
16-6444345
17-8187
1867250223
19363173857
201253557435
212927919099
222452549371
23-18379498375
24-127727251897
25-501242196457

[1,0,-3,-10,-25,-47,-41,160,1093,3987,10173,14835,
 -20271,-249343,-1106383,-3335310,-6444345,-8187,
 67250223,363173857,1253557435,2927919099,
 2452549371,-18379498375,-127727251897,
 -501242196457]