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A021991 as a simple table

na(n)
00
-10
-21
-30
-41
-53
-61
-77
-81
-92
-102
-115
-129
-133
-147
-151
-168
-173
-183
-198
-203
-219
-229
-231
-248
-259
-264
-276
-283
-290
-301
-319
-322
-335
-340
-352
-365
-373
-382
-399
-402
-418
-420
-436
-444
-458
-464
-472
-489
-495
-508
-514
-525
-539
-549
-557
-569
-577
-583
-596
-605
-617
-625
-634
-648
-651
-662
-675
-686
-693
-703
-712
-723
-732
-740
-751
-766
-772
-781
-790
-807
-813
-829
-836
-841
-854
-869
-879
-884
-899
-903
-914
-921
-934
-943
-958
-967
-970
-983

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