[ (4th elementary symmetric function of P(n))/(first elementary symmetric function of P(n)) ], where P(n) = {1, p(1), p(2), ..., p(n-1)}, where p(0) = 1.

A024533

[ (4th elementary symmetric function of P(n))/(first elementary symmetric function of P(n)) ], where P(n) = {1, p(1), p(2), ..., p(n-1)}, where p(0) = 1.

Terms

    a(0) =2a(1) =25a(2) =147a(3) =611a(4) =2093a(5) =5854a(6) =14602a(7) =34190a(8) =71459a(9) =142670a(10) =267429a(11) =467068a(12) =781343a(13) =1275325a(14) =2032215a(15) =3103197a(16) =4653176a(17) =6801969a(18) =9651098a(19) =13524668a(20) =18613277a(21) =25340193a(22) =34304139a(23) =45727138a(24) =59855985a(25) =77404844a(26) =98634359a(27) =124471595a(28) =158146984a(29) =198905326

External references