Several generating functions for second-order recurrence sequences. Mező, István (2009) Journal of Integer Sequences [electronic only]
Short generating functions for some semigroup algebras. Denham, Graham (2003) The Electronic Journal of Combinatorics [electronic only]
Signed words and permutations. II: The Euler-Mahonian polynomials. Foata, Dominique, Han, Guo-Niu (2005) The Electronic Journal of Combinatorics [electronic only]
Simultaneous generation of Koecher and Almkvist-Granville's Apéry-like formulae. Rivoal, T. (2004) Experimental Mathematics
Simultaneous maj statistics. Kim, Dongsu, Stanton, Dennis (1999) Séminaire Lotharingien de Combinatoire [electronic only]
Six little squares and how their numbers grow. Beck, Matthias, Zaslavsky, Thomas (2010) Journal of Integer Sequences [electronic only]
Solution to a combinatorial puzzle arising from Mayer's theory of cluster integrals. Bernardi, Olivier (2007) Séminaire Lotharingien de Combinatoire [electronic only]
Some aspects of Hankel matrices in coding theory and combinatorics. Tamm, Ulrich (2001) The Electronic Journal of Combinatorics [electronic only]
Some asymptotic results useful in enumeration problems. A. Meir, J.W. Moon (1987) Aequationes mathematicae
Some bijections and identities for the Catalan and Fine numbers. Callan, David (2005) Séminaire Lotharingien de Combinatoire [electronic only]
Some classes of numbers and derivatives. Janjić, Milan (2009) Journal of Integer Sequences [electronic only]
Some combinatorial problems, connected with product-isomorphisms of binary relations A. E. Kipiani (1988) Acta Universitatis Carolinae. Mathematica et Physica
Some combinatorial results about the operators with jumping nonlinearities Rudolf Švarc (1987) Commentationes Mathematicae Universitatis Carolinae
Some computational formulas for D -Nörlund numbers. Liu, Guodong (2009) Abstract and Applied Analysis
Some easily derivable integer sequences. Liskovets, Valery A. (2000) Journal of Integer Sequences [electronic only]
Some equinumerous pattern-avoiding classes of permutations. Atkinson, M.D. (2005) Discrete Mathematics and Theoretical Computer Science. DMTCS [electronic only]
Some formulas for the central trinomial and Motzkin numbers. Romik, Dan (2003) Journal of Integer Sequences [electronic only]
Some formulas that enumerate certain partitions and graphs Roger C. Grimson (1976) Časopis pro pěstování matematiky
Some further results on Legendre numbers. Haggard, Paul W. (1988) International Journal of Mathematics and Mathematical Sciences
Some generalized Fibonacci polynomials. Shattuck, Mark A., Wagner, Carl G. (2007) Journal of Integer Sequences [electronic only]