Number of 3:4:5 proportioned triangles on a (n+1)X(n+1) grid.

Terms

a(0) =0a(1) =0a(2) =0a(3) =16a(4) =48a(5) =96a(6) =192a(7) =344a(8) =544a(9) =816a(10) =1200a(11) =1696a(12) =2304a(13) =3080a(14) =4040a(15) =5192a(16) =6568a(17) =8216a(18) =10136a(19) =12384a(20) =14984a(21) =17960a(22) =21344a(23) =25216a(24) =29584a(25) =34472a(26) =39936a(27) =46064a(28) =52840a(29) =60320