login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A175835 as a simple table

na(n)
10
21
30
41
50
61
70
81
90
101
112
121
132
141
152
161
172
183
192
203
210
221
230
241
252
261
272
283
292
303
312
323
330
343
350
363
374
381
394
401
410
421

[0,1,0,1,0,1,0,1,0,1,2,1,2,1,2,1,2,3,2,3,0,1,0,1,
 2,1,2,3,2,3,2,3,0,3,0,3,4,1,4,1,0,1]