A026390 - cp's OEIS frontend

A026390 Expansion of (2 + x + x^2)/((1 - x)*(1 - x - x^2)).

n	a(n)
0	2
1	5
2	11
3	20
4	35
5	59
6	98
7	161
8	263
9	428
10	695
11	1127
12	1826
13	2957
14	4787
15	7748
16	12539
17	20291
18	32834
19	53129
20	85967
21	139100
22	225071
23	364175
24	589250
25	953429
26	1542683
27	2496116
28	4038803
29	6534923
30	10573730

[2, 5, 11, 20, 35, 59, 98, 161, 263, 428, 695, 1127, 1826, 2957, 4787, 7748, 12539, 20291, 32834, 53129, 85967, 139100, 225071, 364175, 589250, 953429, 1542683, 2496116, 4038803, 6534923, 10573730]

cp's OEIS Frontend

A026390 Expansion of (2 + x + x^2)/((1 - x)*(1 - x - x^2)).

Table of values

List of values