Total number of vertices formed by intersections among sides and straight "chords" in a right triangle when each side is divided by vertices into n equal segments.

A274585

Total number of vertices formed by intersections among sides and straight "chords" in a right triangle when each side is divided by vertices into n equal segments.

Terms

    a(0) =1a(1) =3a(2) =10a(3) =58a(4) =178a(5) =558a(6) =1255a(7) =2532a(8) =4786a(9) =7804a(10) =12292a(11) =18966a(12) =28540a(13) =39117a(14) =56107a(15) =73924a(16) =96010a(17) =124704a(18) =164815a(19) =203316a(20) =258706a(21) =311296a(22) =377998a(23) =458862a(24) =560827a(25) =649011a(26) =775336a(27) =908974a(28) =1056604a(29) =1215174

External references