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”).

A133820 as a simple table

na(n)
11
21
38
41
58
627
71
88
927
1064
111
128
1327
1464
15125
161
178
1827
1964
20125
21216
221
238
2427
2564
26125
27216
28343
291
308
3127
3264
33125
34216
35343
36512
371
388
3927
4064
41125
42216
43343
44512
45729
461
478
4827
4964
50125
51216
52343
53512
54729
551000

[1,1,8,1,8,27,1,8,27,64,1,8,27,64,125,1,8,27,64,
 125,216,1,8,27,64,125,216,343,1,8,27,64,125,216,
 343,512,1,8,27,64,125,216,343,512,729,1,8,27,64,
 125,216,343,512,729,1000]