A264274 - 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

A264274 as a simple table

n	a(n)
1	25
2	305
3	3721
4	40626
5	443556
6	4861800
7	53290000
8	586058600
9	6445199524
10	70892939818
11	779775536401
12	8576942789777
13	94339901914129
14	1037668357033074
15	11413575775898244
16	125540825889208392
17	1380855507020471056

[25,305,3721,40626,443556,4861800,53290000, 586058600,6445199524,70892939818,779775536401, 8576942789777,94339901914129,1037668357033074, 11413575775898244,125540825889208392, 1380855507020471056]