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A021913 as a simple table

na(n)
00
-10
-21
-31
-40
-50
-61
-71
-80
-90
-101
-111
-120
-130
-141
-151
-160
-170
-181
-191
-200
-210
-221
-231
-240
-250
-261
-271
-280
-290
-301
-311
-320
-330
-341
-351
-360
-370
-381
-391
-400
-410
-421
-431
-440
-450
-461
-471
-480
-490
-501
-511
-520
-530
-541
-551
-560
-570
-581
-591
-600
-610
-621
-631
-640
-650
-661
-671
-680
-690
-701
-711
-720
-730
-741
-751
-760
-770
-781
-791
-800
-810
-821
-831
-840
-850
-861
-871
-880
-890
-901
-911
-920
-930
-941
-951
-960
-970
-981

[0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,
 0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,
 0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,
 1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1]