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”).

A137600 as a simple table

na(n)
118
232
336
4144
5576
636864
7589824
82359296
99663676416

[18,32,36,144,576,36864,589824,2359296,9663676416]