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A011661 as a simple table

na(n)
00
10
20
30
41
51
60
70
81
90
100
111
121
131
141
151
160
171
181
191
200
210
220
231
240
251
260
271
281
290
301
310
320
330
340
351
361
370
380
391
400
410
421
431
441
451
461
470
481
491
501
510
520
530
541
550
561
570
581
591
600
611
620
630
640
650
661
671
680
690
701
710
720
731
741
751
761
771
780
791
801

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