A091142 - cp's OEIS frontend

A091142 a(n) = 2a(n-1) + 4a(n-2) - 2*a(n-3) with initial terms 1, 2, 6.

n	a(n)
1	1
2	2
3	6
4	18
5	56
6	172
7	532
8	1640
9	5064
10	15624
11	48224
12	148816
13	459280
14	1417376
15	4374240
16	13499424
17	41661056
18	128571328
19	396788032
20	1224539264
21	3779088000
22	11662756992
23	35992787456
24	111078426880
25	342802489600
26	1057933111808
27	3264919328256
28	10075966124544

[1, 2, 6, 18, 56, 172, 532, 1640, 5064, 15624, 48224, 148816, 459280, 1417376, 4374240, 13499424, 41661056, 128571328, 396788032, 1224539264, 3779088000, 11662756992, 35992787456, 111078426880, 342802489600, 1057933111808, 3264919328256, 10075966124544]

cp's OEIS Frontend

A091142 a(n) = 2a(n-1) + 4a(n-2) - 2*a(n-3) with initial terms 1, 2, 6.

Table of values

List of values

cp's OEIS Frontend

A091142 a(n) = 2*a(n-1) + 4*a(n-2) - 2*a(n-3) with initial terms 1, 2, 6.

Table of values

List of values

A091142 a(n) = 2a(n-1) + 4a(n-2) - 2*a(n-3) with initial terms 1, 2, 6.