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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A105944 C(n+8,n)*C(n+11,8) 0
165, 4455, 57915, 495495, 3185325, 16563690, 73002930, 281582730, 972740340, 3062330700, 8904315420, 24168856140, 61764854580, 149660993790, 345855237750, 766005304350, 1632800780325, 3361648665375, 6705510829875, 12993932469375, 24518985616125 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..20.

FORMULA

G.f.: -165*(x+1)*(x^4+9*x^3+19*x^2+9*x+1) / (x-1)^17. [Colin Barker, Jan 28 2013]

EXAMPLE

If n=0 then C(0+8,0)*C(0+11,8)= C(8,0)*C(11,8)=1*165=165

If n=4 then C(4+8,4)*C(4+11,8)= C(12,4)*C(15,8)=495*6435=3185325

MATHEMATICA

Table[Binomial[n+8, n]Binomial[n+11, 8], {n, 0, 30}] (* Harvey P. Dale, Apr 26 2018 *)

CROSSREFS

Cf. A062145.

Sequence in context: A027796 A145055 A194483 * A071576 A140912 A132055

Adjacent sequences:  A105941 A105942 A105943 * A105945 A105946 A105947

KEYWORD

easy,nonn

AUTHOR

Zerinvary Lajos, Apr 27 2005

EXTENSIONS

More terms from Colin Barker, Jan 28 2013

STATUS

approved

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 May 6 09:17 EDT 2021. Contains 343580 sequences. (Running on oeis4.)