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”).

A288330 as a simple table

na(n)
01
12
23
312
43
562
615
7252
815
91018
1015
114088
1215
1316374
14251
1565412
16251
17262020
18251
191048452
20251
214194180
22123
2316777092
24891
2567108740
26763
27268435204
282811
291073741692
3061643
314294938428
3263195
3317179840492
3462743
3568719448058
3664927
37274877876070

[1,2,3,12,3,62,15,252,15,1018,15,4088,15,16374,
 251,65412,251,262020,251,1048452,251,4194180,123,
 16777092,891,67108740,763,268435204,2811,
 1073741692,61643,4294938428,63195,17179840492,
 62743,68719448058,64927,274877876070]