login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A027143 a(n) = Sum_{k=0..2n-3} T(n,k) * T(n,k+3), with T given by A027113. 0

%I

%S 57,486,4117,34760,293086,2471917,20870169,176467252,1494672812,

%T 12682766442,107814252502,918166760699,7832993240285,66936986352534,

%U 572934789920969,4911478255448828,42165255645650628,362494201554529232,3120475613849051712,26895832224848130557

%N a(n) = Sum_{k=0..2n-3} T(n,k) * T(n,k+3), with T given by A027113.

%K nonn

%O 3,1

%A _Clark Kimberling_

%E More terms from _Sean A. Irvine_, Oct 23 2019

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 10 13:12 EDT 2022. Contains 356039 sequences. (Running on oeis4.)