Revision as of 09:42, 11 April 2020 edit D.Lazard (talk \| contribs) Extended confirmed users 35,627 edits Adding local short description: "Integer that is both a perfect square and a triangular number", overriding Wikidata description "figurate number" (Shortdesc helper) ← Previous edit		Revision as of 06:29, 12 May 2020 edit undo 1.128.105.50 (talk) No edit summary Next edit →
Line 4: In [[mathematics]], a '''square triangular number''' (or '''triangular square number''') is a number which is both a [[triangular number]] and a [[square number\|perfect square]]. There are [[Infinity\|infinitely many]] square triangular numbers; the first few are: :0, 1~~, 36~~, {{val\|1225\|fmt=gaps}}, {{val\|41616}}, {{val\|1413721}}, {{val\|48024900}}, {{val\|1631432881}}, {{val\|55420693056}}, {{val\|1882672131025}} {{OEIS\|id=A001110}} ==Explicit formulas==

Square triangular number: Difference between revisions