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61.10 Another solution of a factorial problem
Published online by Cambridge University Press: 22 September 2016
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In the article Problems, solved and unsolved in the Gazette for March 1976, and in the postscript to its sequel in December 1976 (60, 1–11 and 284–291), proofs are given that
is integral when a and b are positive integers. The search for a combinatorial proof was unsuccessful.
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- Copyright © Mathematical Association 1977
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