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”).

A304106 as a simple table

na(n)
11
22
33
41
54
62
75
83
91
101
116
124
137
145
152
162
178
186
199
207
213
223
2310
248
254
264
271
281
2911
309
3112
3210
335
345
352
362
3713
3811
396
406
4114
4212
4315
4413
457
467
4716
4814
498
508
513
523
5317
5415
559
569
574
584
5918
6016
6119
6217
6310
6410
655
665
6720
6818
6911
7011
7121
7219
7322
7420
7512
7612
776
786
7923
8021
8113
8213
8324
8422
8514
8614
877
887
8925
9023
9115
9215
938
948
951
961
9726
9824
9916
10016

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