A218424 - 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

A218424 as a simple table

n	a(n)
1	31
2	2849
3	158429
4	9539915
5	572765605
6	34328798853
7	2058493362799
8	123428176573409
9	7400808508179025
10	443756537313437079
11	26607874601757021869
12	1595422183998461122637
13	95662355032495391763215

[31,2849,158429,9539915,572765605,34328798853, 2058493362799,123428176573409,7400808508179025, 443756537313437079,26607874601757021869, 1595422183998461122637,95662355032495391763215]