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”).

A273433 as a simple table

na(n)
13
28
357
41047
527216
6861642
721444846
8674273372
9147534349327
1045941644105613
11244158265828023
12569209871196597077
1315204969799577672558
142111244131216208612515
15129192323492968413250921
1625814874251189658671192458
1713543096262710710570994132579

[3,8,57,1047,27216,861642,21444846,674273372,
 147534349327,45941644105613,244158265828023,
 569209871196597077,15204969799577672558,
 2111244131216208612515,129192323492968413250921,
 25814874251189658671192458,
 13543096262710710570994132579]