EntityQ1594413· pop 5· linked from 6 articlestrinomial triangleSign in to savetriangular array of the trinomial coefficients in mathematicsConnectionschessEntityLeonhard EulerEntitykingEntityPascal's triangleEntitytriangular numberEntitybinomial coefficientEntityFibonacci sequenceEntityOn-Line Encyclopedia of Integer SequencesEntityMathWorldEntityrecurrence relationEntityEric W. WeissteinEntitygenerating functionEntitymultinomial theoremEntitytrinomialEntityGeorge AndrewsEntityc’tEntitypolynomial expansionEntityDoppelkopfEntityCategoriesDiscrete mathematicsFactorial and binomial topicsTriangles of numbers