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!)
A126451 Column 0 of triangle A126450; a(n) = C( C(n+2,3) + 1, n). 7

%I

%S 1,2,10,165,5985,376992,36288252,4935847320,899749479915,

%T 211531737340440,62292206224983306,22453501436688294427,

%U 9723205992282927449305,4980663327690172963041600,2978877731799385928100461400,2057145404864429538334152506640

%N Column 0 of triangle A126450; a(n) = C( C(n+2,3) + 1, n).

%H Vincenzo Librandi, <a href="/A126451/b126451.txt">Table of n, a(n) for n = 0..200</a>

%t Table[Binomial[Binomial[n+2,3]+1,n],{n,0,20}] (* _Harvey P. Dale_, Mar 08 2014 *)

%o (PARI) a(n)=binomial(n*(n+1)*(n+2)/3!+1, n)

%o (MAGMA) [Binomial(Binomial(n+2,3)+1,n): n in [0..20]]; // _Vincenzo Librandi_, Mar 10 2014

%Y Cf. A126450; A126452, A126453; A126446, A126455, A126458.

%K nonn

%O 0,2

%A _Paul D. Hanna_, Dec 27 2006

%E More terms from _Harvey P. Dale_, Mar 08 2014

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 17 23:13 EDT 2022. Contains 356204 sequences. (Running on oeis4.)