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”).

A272648 as a simple table

na(n)
01
11
20
31
40
51
61
76
86
90
106
110
126
136
141
151
160
171
180
191
201
216
226
230
246
250
266
276
281
291
300
311
320
331
341
356
366
370
386
390
406
416
421
431
440
451
460
471
481
496
506
510
526
530
546
556
561
571
580
591
600
611
621
636
646
650
666
670
686
696
701
711
720
731
740
751
761
776
786
790
806

[1,1,0,1,0,1,1,6,6,0,6,0,6,6,1,1,0,1,0,1,1,6,6,0,
 6,0,6,6,1,1,0,1,0,1,1,6,6,0,6,0,6,6,1,1,0,1,0,1,1,
 6,6,0,6,0,6,6,1,1,0,1,0,1,1,6,6,0,6,0,6,6,1,1,0,1,
 0,1,1,6,6,0,6]