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A021980 as a simple table

na(n)
00
-10
-21
-30
-42
-54
-65
-79
-80
-91
-106
-113
-129
-133
-144
-154
-162
-176
-182
-192
-209
-215
-220
-238
-241
-259
-266
-277
-282
-291
-303
-311
-321
-334
-347
-355
-364
-370
-389
-398
-403
-416
-420
-436
-445
-455
-467
-473
-487
-497
-500
-514
-529
-531
-548
-550
-563
-572
-587
-598
-606
-618
-628
-635
-642
-654
-665
-679
-680
-691
-706
-713
-729
-733
-744
-754
-762
-776
-782
-792
-809
-815
-820
-838
-841
-859
-866
-877
-882
-891
-903
-911
-921
-934
-947
-955
-964
-970
-989

[0,0,1,0,2,4,5,9,0,1,6,3,9,3,4,4,2,6,2,2,9,5,0,8,
 1,9,6,7,2,1,3,1,1,4,7,5,4,0,9,8,3,6,0,6,5,5,7,3,7,
 7,0,4,9,1,8,0,3,2,7,8,6,8,8,5,2,4,5,9,0,1,6,3,9,3,
 4,4,2,6,2,2,9,5,0,8,1,9,6,7,2,1,3,1,1,4,7,5,4,0,9]