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”).

A242237 as a simple table

na(n)
128
270
3148
4298
5592
61174
72332
84642
99256
1018442
1136736
1273174
13145756
14290338
15578344
161152046
172294836
184571230
199105724
2018138274
2136130792
2271971246
23143364148
24285576250
25568857664
261133144098
272257182472
284496226670

[28,70,148,298,592,1174,2332,4642,9256,18442,
 36736,73174,145756,290338,578344,1152046,2294836,
 4571230,9105724,18138274,36130792,71971246,
 143364148,285576250,568857664,1133144098,
 2257182472,4496226670]