24*a(n)+1 is the numerator of the squared circumradius of a cyclic quadrilateral with sides n, n+1, n+2, n+3.

A351698

24*a(n)+1 is the numerator of the squared circumradius of a cyclic quadrilateral with sides n, n+1, n+2, n+3.

Terms

    a(0) =16a(1) =137a(2) =72a(3) =2210a(4) =6097a(5) =1611a(6) =30882a(7) =60405a(8) =12267a(9) =190927a(10) =315341a(11) =55665a(12) =769895a(13) =1149580a(14) =185985a(15) =2383791a(16) =3328572a(17) =507402a(18) =6166615a(19) =8208662a(20) =1198386a(21) =14003642a(22) =17984950a(23) =2540862a(24) =28808442a(25) =35982891a(26) =4954230a(27) =54843640a(28) =66993635a(29) =9034245

External references