Integer part of the area of integer triangle [A001611(n), A001611(n+1), A001611(n+2)].

Terms

a(0) =0a(1) =1a(2) =2a(3) =5a(4) =9a(5) =18a(6) =35a(7) =71a(8) =144a(9) =294a(10) =601a(11) =1231a(12) =2526a(13) =5191a(14) =10672a(15) =21950a(16) =45159a(17) =92920a(18) =191214a(19) =393512a(20) =809864a(21) =1666775a(22) =3430425a(23) =7060297a(24) =14531166a(25) =29907455a(26) =61554442a(27) =126689294a(28) =260747884a(29) =536663296