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!)
A078106 Number of distances not measured by the shortest Golomb ruler with n marks (i.e., length of shortest Golomb ruler with n marks minus number of distances measured by that ruler. 2

%I

%S 0,0,0,1,2,4,6,8,10,17,19,28,36,46,57,63,63,75,93,123,125,119

%N Number of distances not measured by the shortest Golomb ruler with n marks (i.e., length of shortest Golomb ruler with n marks minus number of distances measured by that ruler.

%C Appears to be (length of shortest Golomb ruler with n marks) - n*(n-1)/2; or A003022(n) - A000217(n-1).

%D Miller, J. C. P. Difference bases. Three problems in additive number theory. Computers in number theory (Proc. Sci. Res. Council Atlas Sympos. No. 2, Oxford, 1969), pp. 299--322. Academic Press, London,1971. MR0316269 (47 #4817) - From _N. J. A. Sloane_, Jun 05 2012

%D Rhys Price Jones, Gracelessness, Proc. 10th S.-E. Conf. Combin., Graph Theory and Computing, 1979, pp. 547-552. - From _N. J. A. Sloane_, Jun 05 2012

%H <a href="/index/Go#Golomb">Index entries for sequences related to Golomb rulers</a>

%Y Cf. A000217, A003022, A106683.

%K nonn

%O 2,5

%A Michael Gilleland, Nov 24 2002

%E Made consistent with A003022 by _Peter Munn_, Jul 23 2019

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 March 2 09:23 EST 2021. Contains 341746 sequences. (Running on oeis4.)