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”).

A367763 as a simple table

na(n)
11
21
33
43
55
6900
7756000
815876000
942674688000
1056899584000
111204450394112000
122782280410398720000
13154249625952505036800000
1461082851877191994572800000

[1,1,3,3,5,900,756000,15876000,42674688000,
 56899584000,1204450394112000,2782280410398720000,
 154249625952505036800000,
 61082851877191994572800000]