Area common to integer-sided isosceles triangles (x,x,y) and (x,x,z=y+2d), sorted on x > z/2, d being positive.
A120644
Area common to integer-sided isosceles triangles (x,x,y) and (x,x,z=y+2d), sorted on x > z/2, d being positive.
Terms
- a(0) =12a(1) =60a(2) =120a(3) =168a(4) =420a(5) =420a(6) =360a(7) =1260a(8) =660a(9) =1848a(10) =1008a(11) =2640a(12) =2772a(13) =1092a(14) =3120a(15) =4680a(16) =1980a(17) =5460a(18) =1680a(19) =5148a(20) =9240a(21) =3432a(22) =2448a(23) =7140a(24) =11220a(25) =14280a(26) =8580a(27) =3420a(28) =15912a(29) =10032
External references
- oeis: A120644