A057866 - 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

A057866 as a simple table

n	a(n)
1	7
2	19
3	1453
4	13687
5	7708537
6	4472029801
7	149780635937
8	11231299844779783
9	3688053840923281541
10	2659842854283579394387
11	1228751826452728351300837
12	67537532722660373286810600661

[7,19,1453,13687,7708537,4472029801,149780635937, 11231299844779783,3688053840923281541, 2659842854283579394387,1228751826452728351300837, 67537532722660373286810600661]