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”).

A369070 as a simple table

na(n)
10
20
30
41
50
60
70
80
90
100
110
121
130
140
150
161
170
180
190
201
210
220
230
240
250
260
271
281
290
300
310
320
330
340
350
361
370
380
390
400
410
420
430
441
450
460
470
481
490
500
510
521
530
541
550
560
570
580
590
601
610
620
630
641
650
660
670
681
690
700
710
720
730
740
750
761
770
780
790
801
810
820
830
841
850
860
870
880
890
900
910
921
930
940
950
960
970
980
990
1001
1010
1020
1030
1040
1050
1060
1070
1081
1090
1100
1110
1121
1130
1140
1150
1161
1170
1180
1190
1200
1210
1220
1230
1241

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