Counting abelian squares. Richmond, L.B.; Shallit, Jeffrey — 2009 The Electronic Journal of Combinatorics [electronic only]
The asymptotic number of set partitions with unequal block sizes. Knopfmacher, A.; Odlyzko, A.M.; Pittel, B.; Richmond, L.B.; Stark, D.; Szekeres, G.; Wormald, N.C. — 1999 The Electronic Journal of Combinatorics [electronic only]
Asymptotic expansions for the coefficients of analytic generating functions. A.M. Odlyzko; L.B. Richmond — 1985 Aequationes mathematicae