A253399 - 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

A253399 as a simple table

n	a(n)
1	81
2	2192
3	27362
4	403698
5	7257328
6	196170260
7	4643086490
8	176392793534
9	7735283529732
10	473507980691236
11	33662526487544248
12	4000330502181468930
13	385260385567127025928
14	74373894362155945768362

[81,2192,27362,403698,7257328,196170260, 4643086490,176392793534,7735283529732, 473507980691236,33662526487544248, 4000330502181468930,385260385567127025928, 74373894362155945768362]