Place a(n) red and b(n) blue balls in an urn; draw 6 balls without replacement; Probability(6 red balls)=Probability(4 red and 2 blue balls); binomial(a(n),6)=binomial(a(n),4)*binomial(b(n),2).
A179123
Place a(n) red and b(n) blue balls in an urn; draw 6 balls without replacement; Probability(6 red balls)=Probability(4 red and 2 blue balls); binomial(a(n),6)=binomial(a(n),4)*binomial(b(n),2).
Terms
- a(0) =5a(1) =10a(2) =14a(3) =49a(4) =80a(5) =355a(6) =599a(7) =2764a(8) =4685a(9) =21730a(10) =36854a(11) =171049a(12) =290120a(13) =1346635a(14) =2284079a(15) =10602004a(16) =17982485a(17) =83469370a(18) =141575774a(19) =657152929a(20) =1114623680a(21) =5173754035a(22) =8775413639a(23) =40732879324a(24) =69088685405a(25) =320689280530a(26) =543934069574
External references
- oeis: A179123