A254769 - 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

A254769 as a simple table

n	a(n)
1	2630
2	11321
3	55196
4	250996
5	1124228
6	5140919
7	23633202
8	108849819
9	502702408
10	2323558628
11	10742654676
12	49672088300
13	229690275939
14	1062108485208
15	4911279320298
16	22710204623110
17	105013833732614
18	485591628870469

[2630,11321,55196,250996,1124228,5140919,23633202, 108849819,502702408,2323558628,10742654676, 49672088300,229690275939,1062108485208, 4911279320298,22710204623110,105013833732614, 485591628870469]