A015518 - cp's OEIS frontend

A015518 a(n) = 2a(n-1) + 3a(n-2), with a(0)=0, a(1)=1.

n	a(n)
0	0
1	1
2	2
3	7
4	20
5	61
6	182
7	547
8	1640
9	4921
10	14762
11	44287
12	132860
13	398581
14	1195742
15	3587227
16	10761680
17	32285041
18	96855122
19	290565367
20	871696100
21	2615088301
22	7845264902
23	23535794707
24	70607384120
25	211822152361
26	635466457082

[0, 1, 2, 7, 20, 61, 182, 547, 1640, 4921, 14762, 44287, 132860, 398581, 1195742, 3587227, 10761680, 32285041, 96855122, 290565367, 871696100, 2615088301, 7845264902, 23535794707, 70607384120, 211822152361, 635466457082]

cp's OEIS Frontend

A015518 a(n) = 2a(n-1) + 3a(n-2), with a(0)=0, a(1)=1.

Table of values

List of values

cp's OEIS Frontend

A015518 a(n) = 2*a(n-1) + 3*a(n-2), with a(0)=0, a(1)=1.

Table of values

List of values

A015518 a(n) = 2a(n-1) + 3a(n-2), with a(0)=0, a(1)=1.