Wiktionary

Delannoy number

English edit

 
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Etymology edit

Named after French army officer and amateur mathematician Henri Delannoy.

Noun edit

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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