A069944 - cp's OEIS frontend

A069944 a(n) = denominator(b(n)), where b(1) = b(2) = 1, b(n) = (b(n-1) + b(n-2))/(n-1).

n	a(n)
1	1
2	1
3	1
4	3
5	12
6	60
7	180
8	630
9	10080
10	18144
11	453600
12	2494800
13	59875200
14	778377600
15	1089728640
16	40864824000
17	1307674368000
18	22230464256000
19	15390321408000
20	380140938777600
21	76028187755520000
22	1596591942865920000

[1, 1, 1, 3, 12, 60, 180, 630, 10080, 18144, 453600, 2494800, 59875200, 778377600, 1089728640, 40864824000, 1307674368000, 22230464256000, 15390321408000, 380140938777600, 76028187755520000, 1596591942865920000]

cp's OEIS Frontend

A069944 a(n) = denominator(b(n)), where b(1) = b(2) = 1, b(n) = (b(n-1) + b(n-2))/(n-1).

Table of values

List of values