EntityQ649470· pop 12· linked from 6 articlesLeibniz harmonic triangleSign in to savetriangular arrangement L(r,c) of unit fractions, where (r,c) are row and column numbers, such that L(r, 1) = 1/r and L(r, c) = L(r − 1, c − 1) − L(r, c − 1)ConnectionsalgebraEntityInternational Standard Book NumberEntitynatural numberEntityInternational Standard Serial NumberEntityPascal's triangleEntitymultiplicative inverseEntitytriangular numberEntitybinomial coefficientEntityOn-Line Encyclopedia of Integer SequencesEntityunit fractionEntitytetrahedral numberEntitytelescoping seriesEntityPascal's ruleEntityhockey-stick identityEntityCategoriesGottfried Wilhelm LeibnizTriangles of numbers