A123011 - cp's OEIS frontend

A123011 a(n) = 2a(n-1) + 5a(n-2) for n > 1; a(0) = 1, a(1) = 5.

n	a(n)
0	1
1	5
2	15
3	55
4	185
5	645
6	2215
7	7655
8	26385
9	91045
10	314015
11	1083255
12	3736585
13	12889445
14	44461815
15	153370855
16	529050785
17	1824955845
18	6295165615
19	21715110455
20	74906048985
21	258387650245
22	891305545415
23	3074549342055

[1, 5, 15, 55, 185, 645, 2215, 7655, 26385, 91045, 314015, 1083255, 3736585, 12889445, 44461815, 153370855, 529050785, 1824955845, 6295165615, 21715110455, 74906048985, 258387650245, 891305545415, 3074549342055]

cp's OEIS Frontend

A123011 a(n) = 2a(n-1) + 5a(n-2) for n > 1; a(0) = 1, a(1) = 5.

Table of values

List of values

cp's OEIS Frontend

A123011 a(n) = 2*a(n-1) + 5*a(n-2) for n > 1; a(0) = 1, a(1) = 5.

Table of values

List of values

A123011 a(n) = 2a(n-1) + 5a(n-2) for n > 1; a(0) = 1, a(1) = 5.