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”).

A258285 as a simple table

na(n)
131
141
158
1611
1752
1891
19326
20567
211925
223361
2310114
2417998
2550084
2689303
27236472
28414418
291036205
301872828
314394636
327781405
3318111119
3431868623
3570513669
36125728510
37269084037
38475275290
391005278492
401749029589
413594394017
426355048530
4312651552078
4422036692845
4543804062866
4675652893831

[1,1,8,11,52,91,326,567,1925,3361,10114,17998,
 50084,89303,236472,414418,1036205,1872828,4394636,
 7781405,18111119,31868623,70513669,125728510,
 269084037,475275290,1005278492,1749029589,
 3594394017,6355048530,12651552078,22036692845,
 43804062866,75652893831]