Perimeter of integer-sided primitive triangles (a, b, c) whose angle B = 3*C.

Terms

a(0) =21a(1) =110a(2) =315a(3) =432a(4) =684a(5) =720a(6) =1100a(7) =1265a(8) =1560a(9) =1612a(10) =2106a(11) =1885a(12) =2240a(13) =3255a(14) =3040a(15) =3808a(16) =3485a(17) =3978a(18) =4760a(19) =4403a(20) =5040a(21) =5130a(22) =5719a(23) =6669a(24) =6232a(25) =6440a(26) =7560a(27) =9030a(28) =7896a(29) =8008