Sommaire

There are more than 2n/17 n-letter ternary square-free words.

Ekhad, Shalosh B. ; Zeilberger, Doron

Access to full text


The Electronic Library of Mathematics
Properties of a quadratic Fibonacci recurrence.

Duke, W. ; Greenfield, Stephen J. ; Speer, Eugene R.

Access to full text


The Electronic Library of Mathematics
On repdigit polygonal numbers.

Keith, Mike

Access to full text


The Electronic Library of Mathematics
The computation of certain numbers using a ruler and compass.

Plouffe, Simon

Access to full text


The Electronic Library of Mathematics
The number of triangles formed by intersecting diagonals of a regular polygon.

Sommars, Steven E. ; Sommars, Tim

Access to full text


The Electronic Library of Mathematics
Some problems of combinatorial number theory related to Bertrand's postulate.

Greenfield, Lawrence E. ; Greenfield, Stephen J.

Access to full text


The Electronic Library of Mathematics
A Connell-like sequence.

Stevens, Gary E.

Access to full text


The Electronic Library of Mathematics
On happy factorizations.

Conway, J.H.

Access to full text


The Electronic Library of Mathematics