a(n) = area of Pythagorean triangle with hypotenuse p, where p = A002144(n) = n-th prime == 1 (mod 4).

A145010

a(n) = area of Pythagorean triangle with hypotenuse p, where p = A002144(n) = n-th prime == 1 (mod 4).

Terms

    a(0) =6a(1) =30a(2) =60a(3) =210a(4) =210a(5) =180a(6) =630a(7) =330a(8) =1320a(9) =1560a(10) =2340a(11) =990a(12) =2730a(13) =840a(14) =4620a(15) =3570a(16) =5610a(17) =4290a(18) =1710a(19) =7980a(20) =2730a(21) =6630a(22) =10920a(23) =12540a(24) =4080a(25) =8970a(26) =14490a(27) =18480a(28) =9690a(29) =3900

External references