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A374205 as a simple table

na(n)
20
30
40
51
60
70
80
90
101
110
121
130
140
152
160
170
180
190
201
210
220
230
240
252
260
270
281
290
301
310
321
330
340
352
360
370
380
392
402
410
420
430
442
451
460
470
480
490
503
512
520
530
541
553
560
570
580
590
601
610
620
630
640
651
660
670
680
690
701
710
720
730
740
752
762
770
780
790
801
810
820
830
840
851
860
871
880
890
901
912
921
930
940
953
960
970
980
990
1002
1010
1020
1030
1041
1051
1060
1070
1080
1090
1101
1112
1120
1130
1140
1152
1160
1170
1180
1192
1201
1210
1220
1231
1242
1253

[0,0,0,1,0,0,0,0,1,0,1,0,0,2,0,0,0,0,1,0,0,0,0,2,
 0,0,1,0,1,0,1,0,0,2,0,0,0,2,2,0,0,0,2,1,0,0,0,0,3,
 2,0,0,1,3,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,2,
 2,0,0,0,1,0,0,0,0,1,0,1,0,0,1,2,1,0,0,3,0,0,0,0,2,
 0,0,0,1,1,0,0,0,0,1,2,0,0,0,2,0,0,0,2,1,0,0,1,2,3]