Number of right triangles on a (n+1)X6 grid.

Terms

a(0) =68a(1) =238a(2) =524a(3) =926a(4) =1444a(5) =2060a(6) =2784a(7) =3596a(8) =4492a(9) =5470a(10) =6516a(11) =7630a(12) =8820a(13) =10070a(14) =11380a(15) =12758a(16) =14204a(17) =15710a(18) =17276a(19) =18902a(20) =20596a(21) =22350a(22) =24164a(23) =26038a(24) =27972a(25) =29970a(26) =32028a(27) =34146a(28) =36324a(29) =38562