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”).

A230725 as a simple table

na(n)
01
11
21
33
45
59
68
74
812
96
1013
1113
1214
134
1413
1513
1621
1720
1818
1932
2025
2121
2233
2325
2443
2520
2616
2725
2816
2921
3053
3136
3238
3346
3448
3551
3646
3764
3844
3955
4046
4146
4248
4341
4445
4553
4658
4757
4860
4949
5058
5159
5267
5358
5476
5557
5665
5772
5877
5961

[1,1,1,3,5,9,8,4,12,6,13,13,14,4,13,13,21,20,18,
 32,25,21,33,25,43,20,16,25,16,21,53,36,38,46,48,
 51,46,64,44,55,46,46,48,41,45,53,58,57,60,49,58,
 59,67,58,76,57,65,72,77,61]