A179123 - cp's OEIS frontend

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).

n	a(n)
1	5
2	10
3	14
4	49
5	80
6	355
7	599
8	2764
9	4685
10	21730
11	36854
12	171049
13	290120
14	1346635
15	2284079
16	10602004
17	17982485
18	83469370
19	141575774
20	657152929
21	1114623680
22	5173754035
23	8775413639
24	40732879324
25	69088685405
26	320689280530
27	543934069574
28	2524781364889

[5, 10, 14, 49, 80, 355, 599, 2764, 4685, 21730, 36854, 171049, 290120, 1346635, 2284079, 10602004, 17982485, 83469370, 141575774, 657152929, 1114623680, 5173754035, 8775413639, 40732879324, 69088685405, 320689280530, 543934069574, 2524781364889]

cp's OEIS Frontend

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).

Table of values

List of values