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”).

A341840 as a simple table

na(n)
00
10
20
30
41
50
60
71
81
90
100
110
122
130
140
150
160
173
183
190
200
210
221
233
243
253
261
270
280
291
302
313
323
332
341
350
360
370
381
393
404
413
421
430
440
450
460
470
480
494
504
510
520
530
540
550
561
570
580
597
605
617
620
630
641
650
660
671
681
690
707
716
726
737
740
751
761
770
780
790
802
810
827
837
846
857
867
870
882
890
900

[0,0,0,0,1,0,0,1,1,0,0,0,2,0,0,0,0,3,3,0,0,0,1,3,
 3,3,1,0,0,1,2,3,3,2,1,0,0,0,1,3,4,3,1,0,0,0,0,0,0,
 4,4,0,0,0,0,0,1,0,0,7,5,7,0,0,1,0,0,1,1,0,7,6,6,7,
 0,1,1,0,0,0,2,0,7,7,6,7,7,0,2,0,0]