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”).

A300410 as a simple table

na(n)
11
21
31
41
52
61
71
81
91
102
111
121
132
141
152
161
171
181
191
202
211
221
231
241
253
262
271
281
291
302
311
321
331
341
352
361
371
381
392
402
412
421
431
441
452
461
471
481
491
503
511
522
531
541
552
561
571
581
591
602
612
621
631
641
653
661
671
681
691
702
711
721
731
741
753
761
771
782
791
802
811
822
831
841
853
861
871
881
891
902
912
921
931
941
952
961
971
981
991
1003

[1,1,1,1,2,1,1,1,1,2,1,1,2,1,2,1,1,1,1,2,1,1,1,1,
 3,2,1,1,1,2,1,1,1,1,2,1,1,1,2,2,2,1,1,1,2,1,1,1,1,
 3,1,2,1,1,2,1,1,1,1,2,2,1,1,1,3,1,1,1,1,2,1,1,1,1,
 3,1,1,2,1,2,1,2,1,1,3,1,1,1,1,2,2,1,1,1,2,1,1,1,1,
 3]