A126566 - cp's OEIS frontend

A126566 a(0)=1; a(1)=2; a(2)=5; a(3)=14; for n>3: a(n) = 8a(n-1)-20a(n-2)+16*a(n-3)-a(n-4).

n	a(n)
0	1
1	2
2	5
3	14
4	43
5	142
6	495
7	1794
8	6681
9	25346
10	97357
11	377038
12	1468019
13	5735758
14	22460935
15	88083586
16	345754097
17	1358000258
18	5335796565
19	20970349326
20	82429113339
21	324040664974
22	1273932845663
23	5008544929922
24	19691924052361

[1, 2, 5, 14, 43, 142, 495, 1794, 6681, 25346, 97357, 377038, 1468019, 5735758, 22460935, 88083586, 345754097, 1358000258, 5335796565, 20970349326, 82429113339, 324040664974, 1273932845663, 5008544929922, 19691924052361]

cp's OEIS Frontend

A126566 a(0)=1; a(1)=2; a(2)=5; a(3)=14; for n>3: a(n) = 8a(n-1)-20a(n-2)+16*a(n-3)-a(n-4).

Table of values

List of values

cp's OEIS Frontend

A126566 a(0)=1; a(1)=2; a(2)=5; a(3)=14; for n>3: a(n) = 8*a(n-1)-20*a(n-2)+16*a(n-3)-a(n-4).

Table of values

List of values

A126566 a(0)=1; a(1)=2; a(2)=5; a(3)=14; for n>3: a(n) = 8a(n-1)-20a(n-2)+16*a(n-3)-a(n-4).