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”).

A238757 as a simple table

na(n)
12
21
34
43
58
69
716
85
96
1017
1120
1218
1332
1433
1548
167
1710
1812
1936
2011
2134
2240
2364
2435
2538
2637
2768
2865
2966
3096
31128
3213
3314
3421
3524
3619
3726
3825
3972
4022
4170
4269
4380
4467
4582
4681
47144
4815
4974
5073
5176
5275
53130
54129
55136
5671
57132
58133
59192
60131
61194
62193
63256
6423

[2,1,4,3,8,9,16,5,6,17,20,18,32,33,48,7,10,12,36,
 11,34,40,64,35,38,37,68,65,66,96,128,13,14,21,24,
 19,26,25,72,22,70,69,80,67,82,81,144,15,74,73,76,
 75,130,129,136,71,132,133,192,131,194,193,256,23]