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”).

A087548 as a simple table

na(n)
11
22
33
44
510
66
77
816
927
1010
1133
1212
1313
1442
1515
1616
1785
1818
19114
2020
2121
2222
2346
2472
2525
2652
27189
2884
2929
3060
3131
32192
3333
3434
3570
3636
37185
38228
3939
4080
41164
42420
4343
44220
4545
46138
4794
4848
49147
5050
5151
52312
53106
54270
5555
56168
57171
58348
5959
6060
61122
62620
63126
64256
65195

[1,2,3,4,10,6,7,16,27,10,33,12,13,42,15,16,85,18,
 114,20,21,22,46,72,25,52,189,84,29,60,31,192,33,
 34,70,36,185,228,39,80,164,420,43,220,45,138,94,
 48,147,50,51,312,106,270,55,168,171,348,59,60,122,
 620,126,256,195]