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”).

A078474 as a simple table

na(n)
11
21
31
41
52
63
74
85
95
105
115
126
136
146
156
167
177
187
197
208
218
228
238
249
2510
2611
2712
2812
2912
3012
3113
3214
3315
3416
3516
3616
3716
3817
3918
4019
4120
4220
4320
4420
4521
4622
4723
4824
4924
5024
5124
5225
5325
5425
5525
5626
5726
5826
5926
6027
6127
6227
6327
6428
6529
6630
6731
6831
6931
7031
7132
7232
7332
7432
7533
7633
7733

[1,1,1,1,2,3,4,5,5,5,5,6,6,6,6,7,7,7,7,8,8,8,8,9,
 10,11,12,12,12,12,13,14,15,16,16,16,16,17,18,19,
 20,20,20,20,21,22,23,24,24,24,24,25,25,25,25,26,
 26,26,26,27,27,27,27,28,29,30,31,31,31,31,32,32,
 32,32,33,33,33]