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”).

A175508 as a simple table

na(n)
11
21
31
43
52
64
73
87
95
107
116
1210
137
1410
159
1615
1710
1814
1911
2017
2113
2217
2314
2422
2516
2620
2719
2824
2919
3024
3120
3231
3323
3427
3523
3632
3725
3830
3927
4037
4128
4234
4329
4439
4533
4637
4732
4846
4933
5041
5137
5246
5337
5446
5540
5652
5741
5848
5942
6054
6143
6251
6347
6463
6547
6656
6748
6861
6951
7058
7151
7268
7352
7462

[1,1,1,3,2,4,3,7,5,7,6,10,7,10,9,15,10,14,11,17,
 13,17,14,22,16,20,19,24,19,24,20,31,23,27,23,32,
 25,30,27,37,28,34,29,39,33,37,32,46,33,41,37,46,
 37,46,40,52,41,48,42,54,43,51,47,63,47,56,48,61,
 51,58,51,68,52,62]