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A matrix variation on Ramus's identity for lacunary sums of binomial coefficients
(International Journal of Mathematics and Computer Science / Lebanese University, Beirut, 2017-01)
We study the well-known lacunary sums of binomial coefficients considered, most notably, by Christian Ramus, and their connection to a special kind of harmonic number associated with the first case of Fermat's Last Theorem. ...
The German Origin of Andreas Flach, of Flocktown, German Valley, Roxbury Township, Morris County, New Jersey
(Genealogical Society of New Jersey, 2017)
While previously known records of Andreas Flach (1711-1779) of Flocktown contain no direct clue as to his place of origin, the basic structure of his family is established by the account in Chambers's Early Germans of New ...