Place a(n) red and b(n) blue balls in an urn; draw 5 balls without replacement; Probability(5 red balls) = Probability(3 red and 2 blue balls).

A180002

Place a(n) red and b(n) blue balls in an urn; draw 5 balls without replacement; Probability(5 red balls) = Probability(3 red and 2 blue balls).

Terms

    a(0) =4a(1) =8a(2) =24a(3) =43a(4) =179a(5) =783a(6) =1504a(7) =6668a(8) =29604a(9) =56983a(10) =253079a(11) =1124043a(12) =2163724a(13) =9610208a(14) =42683904a(15) =82164403a(16) =364934699a(17) =1620864183a(18) =3120083464a(19) =13857908228a(20) =61550154924a(21) =118481007103a(22) =526235577839

External references