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Delannoy number

From Wiktionary, the free dictionary

English

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Etymology

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Named after French army officer and amateur mathematician Henri Delannoy.

Noun

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Delannoy number (plural Delannoy numbers)

  1. (mathematics) The number of possible paths from the southwest corner (0, 0) of a rectangular grid to the northeast corner (m, n), using only single steps north, northeast, or east.
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