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!)
A118436 Column 0 of triangle A118435. 3

%I

%S 1,1,-3,-11,25,41,-43,29,-335,-1199,3117,6469,-10295,-8839,-16123,

%T -108691,354145,873121,-1721763,-2521451,1476985,-6699319,34182197,

%U 103232189,-242017775,-451910159,597551757,130656229,2465133865,10513816601,-29729597083,-66349305331

%N Column 0 of triangle A118435.

%C Binomial transform of A118434 = (1, 1, 3, 11, 25, 41, 43, -29, -335, -1199, ...). - _Gary W. Adamson_, Sep 19 2008

%F G.f.: (1 + x + 2*x^2 - 6*x^3 + 29*x^4 + 5*x^5)/((1-x^2)*(1 + 6*x^2 + 25*x^4)).

%o (PARI) {a(n)=polcoeff((1+x+2*x^2-6*x^3+29*x^4+5*x^5)/(1-x^2)/(1+6*x^2+25*x^4+x*O(x^n)),n)}

%Y Cf. A118434, A118435 (triangle), A118437 (row sums).

%K sign,changed

%O 0,3

%A _Paul D. Hanna_, Apr 28 2006

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 June 12 09:24 EDT 2021. Contains 344946 sequences. (Running on oeis4.)