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

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A138392 Hankel transform of A062992 with interpolated zeros. 1

%I

%S 1,3,12,128,2048,81920,5242880,805306368,206158430208,123145302310912,

%T 126100789566373888,295147905179352825856,1208925819614629174706176,

%U 11141460353568422474092118016,182541686432865033815525261574144

%N Hankel transform of A062992 with interpolated zeros.

%F a(n)=2^(comb(n+1,2)+0^n-1)*(2+floor((n+1)/2)-0^n)

%p A138392 := proc(n)

%p 2^(binomial(n+1,2)+0^n-1)*(2+floor((n+1)/2)-0^n) ;

%p end proc:

%p seq(%(n),n=0..13) ; # _R. J. Mathar_, Feb 23 2015

%K easy,nonn

%O 0,2

%A _Paul Barry_, Mar 18 2008

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 January 22 13:41 EST 2020. Contains 331149 sequences. (Running on oeis4.)