0,3

For definitions, references and links related to complete rulers see A103294.

Index entries for sequences related to perfect rulers.

a(n) = A103300(A004137(n+1))

a(5)=6 counts the optimal rulers with 5 segments, {[0,1,6,9,11,13],[0,2,4,7,12,13],

[0,1,4,5,11,13],[0,2,8,9,12,13],[0,1,2,6,10,13],[0,3,7,11,12,13]}.

Cf. A103296 (Complete rulers with n segments), A103301 (Perfect rulers with n segments).

Sequence in context: A033961 A000672 A115868 this_sequence A154779 A010101 A129860

Adjacent sequences: A103296 A103297 A103298 this_sequence A103300 A103301 A103302

nonn,hard

Peter Luschny (peter(AT)luschny.de) Feb 28 2005