A156769 - cp's OEIS frontend

A156769 a(n) = denominator(2^(2n-2)/factorial(2n-1)).

n	a(n)
1	1
2	3
3	15
4	315
5	2835
6	155925
7	6081075
8	638512875
9	10854718875
10	1856156927625
11	194896477400625
12	49308808782358125
13	3698160658676859375
14	1298054391195577640625
15	263505041412702261046875
16	122529844256906551386796875
17	4043484860477916195764296875

[1, 3, 15, 315, 2835, 155925, 6081075, 638512875, 10854718875, 1856156927625, 194896477400625, 49308808782358125, 3698160658676859375, 1298054391195577640625, 263505041412702261046875, 122529844256906551386796875, 4043484860477916195764296875]

cp's OEIS Frontend

A156769 a(n) = denominator(2^(2n-2)/factorial(2n-1)).

Table of values

List of values

cp's OEIS Frontend

A156769 a(n) = denominator(2^(2*n-2)/factorial(2*n-1)).

Table of values

List of values

A156769 a(n) = denominator(2^(2n-2)/factorial(2n-1)).