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

A024221

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

Terms

    a(0) =12a(1) =163a(2) =891a(3) =3256a(4) =9340a(5) =22757a(6) =49254a(7) =97430a(8) =179537a(9) =312394a(10) =518402a(11) =826655a(12) =1274155a(13) =1907129a(14) =2782449a(15) =3969144a(16) =5550027a(17) =7623415a(18) =10304946a(19) =13729509a(20) =18053268a(21) =23455784a(22) =30142248a(23) =38345805a(24) =48329989a(25) =60391250a(26) =74861587a(27) =92111285a(28) =112551745

External references