Infinite sets of integers whose distinct elements do not sum to a power prefix ID Dubickas, Artūras; Šarka, Paulius J. Integer Seq. 9(4), Article 06.4.8, 9 p., electronic only (2006)
The number of inequivalent $(2R+3,7)R$ optimal covering codes prefix ID Kéri, Gerzson; Östergård, Patric R.J. J. Integer Seq. 9(4), Article 06.4.7, 8 p., electronic only (2006)
On the distribution of perfect totients prefix ID Luca, Florian J. Integer Seq. 9(4), Article 06.4.4, 17 p., electronic only (2006)
Sums involving the inverses of binomial coefficients prefix ID Yang, Jin-Hua; Zhao, Feng-Zhen J. Integer Seq. 9(4), Article 06.4.2, 11 p., electronic only (2006)
On a number pyramid related to the binomial, Deleham, Eulerian, MacMahon and Stirling number triangles prefix ID Franssens, Ghislain R. J. Integer Seq. 9(4), Article 06.4.1, 34 p., electronic only (2006)
General properties involving reciprocals of binomial coefficients prefix ID Sofo, Anthony J. Integer Seq. 9(4), Article 06.4.5, 13 p., electronic only (2006)
Quasi-Fibonacci numbers of the seventh order prefix ID Wituła, Romana; Słota, Damian; Warzyński, Adam J. Integer Seq. 9(4), Article 06.4.3, 28 p., electronic only (2006)
On a generalization of the coin exchange problem for three variables prefix ID Tripathi, Amitabha; Vijay, Sujith J. Integer Seq. 9(4), Article 06.4.6, 8 p., electronic only (2006)