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A308276 as a simple table

na(n)
10
20
31
40
50
60
70
80
91
100
110
124
130
140
150
160
170
180
191
200
210
224
230
240
250
260
279
280
290
300
310
320
331
349
350
364
370
380
390
400
419
420
430
440
450
460
470
4816
490
500
511
520
530
544
550
560
5716
580
599
600
610
620
630
640
650
6616
670
680
690
700
710
720
731
740
7525
764
7716
780
790
800
819
820
830
840
850

[0,0,1,0,0,0,0,0,1,0,0,4,0,0,0,0,0,0,1,0,0,4,0,0,
 0,0,9,0,0,0,0,0,1,9,0,4,0,0,0,0,9,0,0,0,0,0,0,16,
 0,0,1,0,0,4,0,0,16,0,9,0,0,0,0,0,0,16,0,0,0,0,0,0,
 1,0,25,4,16,0,0,0,9,0,0,0,0]