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”).

A153093 as a simple table

na(n)
11
21
31
42
59
61
72
81
91
105
1113
121
136
141
156
1614
174
184
197
205
216
225
2312
243
256
263
279
283
2920
309
3114
327
3343
3422
355
3611
374
384
3948
4014
418
4256
4336
447
4583
4647
4747
481
492
5074
5115
5212
5322
5415
5517
5647
5720
5820
595
608
6112
6226
636
6426
6555
6616
6732
6845
6924
7046
7119
7258
736
7429
7519
7626
7783
7845
7917
8048
816
8216
83152

[1,1,1,2,9,1,2,1,1,5,13,1,6,1,6,14,4,4,7,5,6,5,12,
 3,6,3,9,3,20,9,14,7,43,22,5,11,4,4,48,14,8,56,36,
 7,83,47,47,1,2,74,15,12,22,15,17,47,20,20,5,8,12,
 26,6,26,55,16,32,45,24,46,19,58,6,29,19,26,83,45,
 17,48,6,16,152]