A251694 - cp's OEIS frontend

A251694 a(n) = (2n+1) (3n+1)^(n-2) 4^n.

n	a(n)
0	1
1	3
2	80
3	4480
4	389376
5	46137344
6	6939332608
7	1266556600320
8	272000000000000
9	67204714785144832
10	18780742521990414336
11	5857307089452073484288
12	2016866466756967373209600
13	759982437118771200000000000
14	311070869724989874190180941824
15	137440072511222468264810285891584

[1, 3, 80, 4480, 389376, 46137344, 6939332608, 1266556600320, 272000000000000, 67204714785144832, 18780742521990414336, 5857307089452073484288, 2016866466756967373209600, 759982437118771200000000000, 311070869724989874190180941824, 137440072511222468264810285891584]

cp's OEIS Frontend

A251694 a(n) = (2n+1) (3n+1)^(n-2) 4^n.

Table of values

List of values

cp's OEIS Frontend

A251694 a(n) = (2*n+1) * (3*n+1)^(n-2) * 4^n.

Table of values

List of values

A251694 a(n) = (2n+1) (3n+1)^(n-2) 4^n.