A012855 - cp's OEIS frontend

A012855 a(0) = 0, a(1) = 1, a(2) = 1; thereafter a(n) = 5a(n-1) - 4a(n-2) + a(n-3).

n	a(n)
0	0
1	1
2	1
3	1
4	2
5	7
6	28
7	114
8	465
9	1897
10	7739
11	31572
12	128801
13	525456
14	2143648
15	8745217
16	35676949
17	145547525
18	593775046
19	2422362079
20	9882257736
21	40315615410
22	164471408185
23	670976837021
24	2737314167775
25	11167134898976

[0, 1, 1, 1, 2, 7, 28, 114, 465, 1897, 7739, 31572, 128801, 525456, 2143648, 8745217, 35676949, 145547525, 593775046, 2422362079, 9882257736, 40315615410, 164471408185, 670976837021, 2737314167775, 11167134898976]

cp's OEIS Frontend

A012855 a(0) = 0, a(1) = 1, a(2) = 1; thereafter a(n) = 5a(n-1) - 4a(n-2) + a(n-3).

Table of values

List of values

cp's OEIS Frontend

A012855 a(0) = 0, a(1) = 1, a(2) = 1; thereafter a(n) = 5*a(n-1) - 4*a(n-2) + a(n-3).

Table of values

List of values

A012855 a(0) = 0, a(1) = 1, a(2) = 1; thereafter a(n) = 5a(n-1) - 4a(n-2) + a(n-3).