A035866 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

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”).

Other ways to Give

A035866 as a simple table

n	a(n)
0	1
1	1640
2	673220
3	123273880
4	12774087510
5	854286594072
6	40098332182820
7	1400550765961960
8	38011151426301640
9	828828255977397080
10	14911158035799862332
11	226193352868905599400
12	2945866488164585776650

[1,1640,673220,123273880,12774087510,854286594072, 40098332182820,1400550765961960,38011151426301640, 828828255977397080,14911158035799862332, 226193352868905599400,2945866488164585776650]