A068124 - 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

A068124 as a simple table

n	a(n)
1	1
2	15
3	322
4	1452
5	88909
6	2955639
7	25880899
8	415533397
9	215443469
10	25144122307797731891
11	1891851504074453542774
12	389309950637308214633931
13	71656315545775490294342978
14	8696027755149851609001142655

[1,15,322,1452,88909,2955639,25880899,415533397, 215443469,25144122307797731891, 1891851504074453542774,389309950637308214633931, 71656315545775490294342978, 8696027755149851609001142655]