A175309 - 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

A175309 as a simple table

n	a(n)
1	2
2	3
3	5
4	18713
5	5
6	683747
7	17
8	98303867
9	13
10	60335249851
11	137
12	1169769749111
13	8021749
14	3945769040698829
15	1071065111
16	159067808851610411
17	1613902553

[2,3,5,18713,5,683747,17,98303867,13,60335249851, 137,1169769749111,8021749,3945769040698829, 1071065111,159067808851610411,1613902553]