A091141 - cp's OEIS frontend

A091141 a(n) = 2a(n-1) + 4a(n-2) - 2*a(n-3) with initial terms 1, 4, 13.

n	a(n)
1	1
2	4
3	13
4	40
5	124
6	382
7	1180
8	3640
9	11236
10	34672
11	107008
12	330232
13	1019152
14	3145216
15	9706576
16	29955712
17	92447296
18	285304288
19	880486336
20	2717295232
21	8385927232
22	25880062720
23	79869243904
24	246486884224
25	760690618624
26	2347590286336
27	7244969278720
28	22358918465536

[1, 4, 13, 40, 124, 382, 1180, 3640, 11236, 34672, 107008, 330232, 1019152, 3145216, 9706576, 29955712, 92447296, 285304288, 880486336, 2717295232, 8385927232, 25880062720, 79869243904, 246486884224, 760690618624, 2347590286336, 7244969278720, 22358918465536]

cp's OEIS Frontend

A091141 a(n) = 2a(n-1) + 4a(n-2) - 2*a(n-3) with initial terms 1, 4, 13.

Table of values

List of values

cp's OEIS Frontend

A091141 a(n) = 2*a(n-1) + 4*a(n-2) - 2*a(n-3) with initial terms 1, 4, 13.

Table of values

List of values

A091141 a(n) = 2a(n-1) + 4a(n-2) - 2*a(n-3) with initial terms 1, 4, 13.