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A213170 as a simple table

na(n)
01
1-2
22
32
4-6
5-14
626
7178
890
9-2382
10-9446
1113746
12287194
13998578
14-3687782
15-56264782
16-208446118
171017677490
1817194912282
1979540574642
20-317691584294
21-7577787031374
22-47958156443238
2377252406086578
244400217218583642
2539757699729476274
2654538870133137690

[1,-2,2,2,-6,-14,26,178,90,-2382,-9446,13746,
 287194,998578,-3687782,-56264782,-208446118,
 1017677490,17194912282,79540574642,-317691584294,
 -7577787031374,-47958156443238,77252406086578,
 4400217218583642,39757699729476274,
 54538870133137690]