[ (4th elementary symmetric function of S(n))/(2nd elementary symmetric function of S(n)) ], where S(n) = {first n+3 positive integers congruent to 1 mod 4}.

A024389

[ (4th elementary symmetric function of S(n))/(2nd elementary symmetric function of S(n)) ], where S(n) = {first n+3 positive integers congruent to 1 mod 4}.

Terms

    a(0) =2a(1) =19a(2) =72a(3) =190a(4) =409a(5) =773a(6) =1336a(7) =2159a(8) =3309a(9) =4863a(10) =6907a(11) =9532a(12) =12840a(13) =16939a(14) =21945a(15) =27985a(16) =35189a(17) =43699a(18) =53664a(19) =65239a(20) =78591a(21) =93891a(22) =111320a(23) =131067a(24) =153328a(25) =178309a(26) =206221a(27) =237286a(28) =271732a(29) =309795

External references