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A291437 as a simple table

na(n)
10
20
30
42
50
60
71
80
90
101
110
121
131
140
150
161
171
180
194
200
210
222
230
242
251
260
271
289
290
300
314
321
330
342
350
360
371
381
390
401
410
422
434
440
451
461
471
480
492
500
510
521
530
540
551
560
573
581
592
604
611
621
630
642
650
661
675
680
690
701
712
721
731
740
750
761
771
780
792
8080
810
826
830
848
852
860
871

[0,0,0,2,0,0,1,0,0,1,0,1,1,0,0,1,1,0,4,0,0,2,0,2,
 1,0,1,9,0,0,4,1,0,2,0,0,1,1,0,1,0,2,4,0,1,1,1,0,2,
 0,0,1,0,0,1,0,3,1,2,4,1,1,0,2,0,1,5,0,0,1,2,1,1,0,
 0,1,1,0,2,80,0,6,0,8,2,0,1]