EntityQ32178732· pop 5· linked from 13 articlescannonball problemSign in to savenumber theory problemConnectionsInternational Standard Book NumberEntitydigital object identifierEntityWalter RaleighEntityJSTOREntitysquare numberEntityDiophantine equationEntitytriangular numberEntityThomas HarriotEntityOn-Line Encyclopedia of Integer SequencesEntityMathWorldEntityÉdouard LucasEntitytetrahedral numberEntityEric W. WeissteinEntityelliptic functionEntityfigurate numberEntityMathematical ReviewsEntitysquare pyramidal numberEntitysquare triangular numberEntityNeil SloaneEntitybosonic string theoryEntityCategoriesDiophantine equationsFigurate numbers