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”).

A104105 as a simple table

na(n)
11
20
30
41
50
61
71
81
90
101
111
120
131
140
150
160
170
181
191
200
211
220
230
240
251
260
270
281
290
301
311
321
330
341
351
360
371
380
390
400
411
420
430
441
450
461
471
481
491
500
510
521
530
541
551
561
570
581
591
600
611
620
630
640
650
661
671
680
691
700
710
720
731
740
750
761
770
781
791
801
811
820
830
841
850
861
871
881
890
901
911
920
931
940
950
960
971
980
990
1001
1010
1021
1031
1041
1050

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