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A339167 as a simple table

na(n)
1-2
25
3-56
4382
5-3002
625918
7-246962
82580478
9-29393282
10362879997
11-4829932803
1268976230397
13-1052366515203
1417086945075197
15-294226732800003
165356234211327997
17-102793666719744003
182074369080655871997
19-43913881247588352003
20973160803270655999997

[-2,5,-56,382,-3002,25918,-246962,2580478,
 -29393282,362879997,-4829932803,68976230397,
 -1052366515203,17086945075197,-294226732800003,
 5356234211327997,-102793666719744003,
 2074369080655871997,-43913881247588352003,
 973160803270655999997]