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”).

A214576 as a simple table

na(n)
11
21
31
42
50
61
73
81
90
101
115
120
130
140
151
166
172
181
190
200
211
2210
230
240
250
260
270
281
2911
303
310
321
330
340
350
361
3716
380
392
400
410
420
430
440
451
4619
475
480
490
501
510
520
530
540
551
5626
570
580
590
600
610
620
630
640
650
661
6727
686
693
702
710
721
730
740
750
760
770
781
7940
800
810
820
830
840
850
860
870
880
890
900
911

[1,1,1,2,0,1,3,1,0,1,5,0,0,0,1,6,2,1,0,0,1,10,0,0,
 0,0,0,1,11,3,0,1,0,0,0,1,16,0,2,0,0,0,0,0,1,19,5,
 0,0,1,0,0,0,0,1,26,0,0,0,0,0,0,0,0,0,1,27,6,3,2,0,
 1,0,0,0,0,0,1,40,0,0,0,0,0,0,0,0,0,0,0,1]