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”).

A030101 as a simple table

na(n)
00
11
21
33
41
55
63
77
81
99
105
1113
123
1311
147
1515
161
1717
189
1925
205
2121
2213
2329
243
2519
2611
2727
287
2923
3015
3131
321
3333
3417
3549
369
3741
3825
3957
405
4137
4221
4353
4413
4545
4629
4761
483
4935
5019
5151
5211
5343
5427
5559
567
5739
5823
5955
6015
6147
6231
6363
641
6565
6633
6797
6817
6981
7049
71113
729
7373
7441
75105
7625
7789
7857

[0,1,1,3,1,5,3,7,1,9,5,13,3,11,7,15,1,17,9,25,5,
 21,13,29,3,19,11,27,7,23,15,31,1,33,17,49,9,41,25,
 57,5,37,21,53,13,45,29,61,3,35,19,51,11,43,27,59,
 7,39,23,55,15,47,31,63,1,65,33,97,17,81,49,113,9,
 73,41,105,25,89,57]