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A244213 as a simple table

na(n)
0-2
13
2-1
30
43
5-7
614
7-25
843
9-72
10119
11-195
12318
13-517
14839
15-1360
162203
17-3567
185774
19-9345
2015123
21-24472
2239599
23-64075
24103678
25-167757
26271439
27-439200
28710643
29-1149847
301860494
31-3010345
324870843
33-7881192

[-2,3,-1,0,3,-7,14,-25,43,-72,119,-195,318,-517,
 839,-1360,2203,-3567,5774,-9345,15123,-24472,
 39599,-64075,103678,-167757,271439,-439200,710643,
 -1149847,1860494,-3010345,4870843,-7881192]