A184327 - cp's OEIS frontend

A184327 a(1)=1, a(2)=17; thereafter a(n) = 6*a(n-1)-a(n-2)+c, where c=-4 if n is odd, c=12 if n is even.

n	a(n)
1	1
2	17
3	97
4	577
5	3361
6	19601
7	114241
8	665857
9	3880897
10	22619537
11	131836321
12	768398401
13	4478554081
14	26102926097
15	152139002497
16	886731088897
17	5168247530881
18	30122754096401
19	175568277047521
20	1023286908188737
21	5964153172084897
22	34761632124320657

[1, 17, 97, 577, 3361, 19601, 114241, 665857, 3880897, 22619537, 131836321, 768398401, 4478554081, 26102926097, 152139002497, 886731088897, 5168247530881, 30122754096401, 175568277047521, 1023286908188737, 5964153172084897, 34761632124320657]

cp's OEIS Frontend

A184327 a(1)=1, a(2)=17; thereafter a(n) = 6*a(n-1)-a(n-2)+c, where c=-4 if n is odd, c=12 if n is even.

Table of values

List of values