A002535 - cp's OEIS frontend

A002535 a(n) = 2a(n-1) + 9a(n-2), with a(0)=a(1)=1.

n	a(n)
0	1
1	1
2	11
3	31
4	161
5	601
6	2651
7	10711
8	45281
9	186961
10	781451
11	3245551
12	13524161
13	56258281
14	234234011
15	974792551
16	4057691201
17	16888515361
18	70296251531
19	292589141311
20	1217844546401
21	5068991364601
22	21098583646811
23	87818089575031
24	365523431971361
25	1521409670118001
26	6332530227978251

[1, 1, 11, 31, 161, 601, 2651, 10711, 45281, 186961, 781451, 3245551, 13524161, 56258281, 234234011, 974792551, 4057691201, 16888515361, 70296251531, 292589141311, 1217844546401, 5068991364601, 21098583646811, 87818089575031, 365523431971361, 1521409670118001, 6332530227978251]

cp's OEIS Frontend

A002535 a(n) = 2a(n-1) + 9a(n-2), with a(0)=a(1)=1.

Table of values

List of values

cp's OEIS Frontend

A002535 a(n) = 2*a(n-1) + 9*a(n-2), with a(0)=a(1)=1.

Table of values

List of values

A002535 a(n) = 2a(n-1) + 9a(n-2), with a(0)=a(1)=1.