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”).

A205636 as a simple table

na(n)
12320
228724
3377568
45079336
569574220
6962953968
713444055224
8188823193784
92664428266336
1037723583696052
11535447018219820
127614062720813020
13108418400331562368
141545312836738950012
1522041527502028941280

[2320,28724,377568,5079336,69574220,962953968,
 13444055224,188823193784,2664428266336,
 37723583696052,535447018219820,7614062720813020,
 108418400331562368,1545312836738950012,
 22041527502028941280]