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A152167 as a simple table

na(n)
01
1-3
26
3-15
433
5-78
6177
7-411
8942
9-2175
105001
11-11526
1226529
13-61107
14140694
15-324015
16746097
17-1718142
183956433
19-9110859
2020980158
21-48312735
22111253209
23-256191414
24589951041
25-1358525283
263128378406
27-7203954255
2816589089473

[1,-3,6,-15,33,-78,177,-411,942,-2175,5001,-11526,
 26529,-61107,140694,-324015,746097,-1718142,
 3956433,-9110859,20980158,-48312735,111253209,
 -256191414,589951041,-1358525283,3128378406,
 -7203954255,16589089473]