login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A145171 as a simple table

na(n)
11
21
31
41
52
60
71
80
90
101
111
121
131
141
151
161
172
180
190
200
210
221
230
240
252
260
270
280
291
301
311
322
332
342
350
360
371
382
390
401
412
420
431
442
450
461
470
480
490
500
510
520
530
540
551
561
571
581
590
600
610
620
630
640
651
661

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