The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A100730 Fundamental difference of Ulam 1-additive sequence starting U(2,2n+1). 5

%I #25 Aug 17 2015 17:29:56

%S 126,126,1778,6510,23622,510,507842,1523526,8388606,4194302,597870,

%T 35791394,21691754,2046,511305630,45678505642,51539607546,

%U 640638112422,2748779069430,25563645345606,46912496118442,80418967640942

%N Fundamental difference of Ulam 1-additive sequence starting U(2,2n+1).

%H Max Alekseyev, <a href="/A100730/b100730.txt">Table of n, a(n) for n = 2..610</a>

%H M. Akeran, <a href="/A003668/a003668.pdf">On some 1-additive sequences</a>

%H S. R. Finch, <a href="http://www.emis.de/journals/EM/expmath/volumes/1/1.html">Patterns in 1-additive sequences</a>, Experimental Mathematics 1 (1992), 57-63.

%F a(n) = 2 * A046932(2*n+2)

%Y Cf. A100729 for the period, A001857 for U(2, 3), A007300 for U(2, 5), A003668 for U(2, 7).

%K nonn

%O 2,1

%A _Ralf Stephan_, Dec 03 2004

%E 2 more terms from Balakrishnan V (balaji.iitm1(AT)gmail.com), Nov 15 2007

%E Further new terms and b-file from _Max Alekseyev_, Dec 01 2007

%E b-file extended by _Max Alekseyev_, Aug 17 2015

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 May 13 11:22 EDT 2024. Contains 372504 sequences. (Running on oeis4.)