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”).

A040577 as a simple table

na(n)
024
11
21
36
41
51
648
71
81
96
101
111
1248
131
141
156
161
171
1848
191
201
216
221
231
2448
251
261
276
281
291
3048
311
321
336
341
351
3648
371
381
396
401
411
4248
431
441
456
461
471
4848
491
501
516
521
531
5448
551
561
576
581
591
6048
611
621
636
641
651
6648
671
681
696
701
711
7248
731
741
756
761
771
7848
791
801
816
821
831
8448
851
861

[24,1,1,6,1,1,48,1,1,6,1,1,48,1,1,6,1,1,48,1,1,6,
 1,1,48,1,1,6,1,1,48,1,1,6,1,1,48,1,1,6,1,1,48,1,1,
 6,1,1,48,1,1,6,1,1,48,1,1,6,1,1,48,1,1,6,1,1,48,1,
 1,6,1,1,48,1,1,6,1,1,48,1,1,6,1,1,48,1,1]