A030195 - cp's OEIS frontend

A030195 a(n) = 3a(n-1) + 3a(n-2), a(0)=0, a(1)=1.

n	a(n)
0	0
1	1
2	3
3	12
4	45
5	171
6	648
7	2457
8	9315
9	35316
10	133893
11	507627
12	1924560
13	7296561
14	27663363
15	104879772
16	397629405
17	1507527531
18	5715470808
19	21668995017
20	82153397475
21	311467177476
22	1180861724853
23	4476986706987
24	16973545295520

[0, 1, 3, 12, 45, 171, 648, 2457, 9315, 35316, 133893, 507627, 1924560, 7296561, 27663363, 104879772, 397629405, 1507527531, 5715470808, 21668995017, 82153397475, 311467177476, 1180861724853, 4476986706987, 16973545295520]

cp's OEIS Frontend

A030195 a(n) = 3a(n-1) + 3a(n-2), a(0)=0, a(1)=1.

Table of values

List of values

cp's OEIS Frontend

A030195 a(n) = 3*a(n-1) + 3*a(n-2), a(0)=0, a(1)=1.

Table of values

List of values

A030195 a(n) = 3a(n-1) + 3a(n-2), a(0)=0, a(1)=1.