0,3

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

Table of n, a(n) for n=0..19.

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: A201542 A000672 A115868 * A195204 A228892 A154779

Adjacent sequences:  A103296 A103297 A103298 * A103300 A103301 A103302

nonn,hard,more,changed

Peter Luschny Feb 28 2005

approved