login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

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 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A253480 as a simple table

n a(n)
1 27000
2 1069400
3 44878810
4 1878758740
5 78704951512
6 3297669520142
7 138204642567680
8 5791515989673804
9 242710135725239668
10 10171279006748889244
11 426252400904323368342
12 17863104607113877927270

[27000,1069400,44878810,1878758740,78704951512,
 3297669520142,138204642567680,5791515989673804,
 242710135725239668,10171279006748889244,
 426252400904323368342,17863104607113877927270]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 2 03:43 EST 2021. Contains 349437 sequences. (Running on oeis4.)