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”).

A092197 as a simple table

na(n)
10
20
30
42
50
60
70
80
93
100
110
120
130
142
150
160
170
180
193
200
210
220
230
242
250
260
270
280
293
300
310
320
330
342
350
360
370
380
393
402
412
422
432
444
452
462
472
482
495
500
510
520
530
542
550
560
570
580
593
600
610
620
630
642
650
660
670
680
693
700
710
720
730
742
750
760
770
780
793
800
810
820
830
842
850
860
870
880
893
903
913
923
933
945
953
963
973
983
996
1000
1010
1020
1030
1042
1050

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