A127850 - cp's OEIS frontend

A127850 a(n)=(2^n-1)*2^(n(n-1)/2)/(2^(n-1)).

n	a(n)
0	0
1	1
2	3
3	14
4	120
5	1984
6	64512
7	4161536
8	534773760
9	137170518016
10	70300024700928
11	72022409665839104
12	147537923792657448960
13	604389122831019749146624
14	4951457925686617442302820352

[0, 1, 3, 14, 120, 1984, 64512, 4161536, 534773760, 137170518016, 70300024700928, 72022409665839104, 147537923792657448960, 604389122831019749146624, 4951457925686617442302820352]

cp's OEIS Frontend

A127850 a(n)=(2^n-1)*2^(n(n-1)/2)/(2^(n-1)).

Table of values

List of values