A087206 - cp's OEIS frontend

A087206 a(n) = 2a(n-1) + 4a(n-2); with a(0)=1, a(1)=4.

n	a(n)
0	1
1	4
2	12
3	40
4	128
5	416
6	1344
7	4352
8	14080
9	45568
10	147456
11	477184
12	1544192
13	4997120
14	16171008
15	52330496
16	169345024
17	548012032
18	1773404160
19	5738856448
20	18571329536
21	60098084864
22	194481487872
23	629355315200
24	2036636581888

[1, 4, 12, 40, 128, 416, 1344, 4352, 14080, 45568, 147456, 477184, 1544192, 4997120, 16171008, 52330496, 169345024, 548012032, 1773404160, 5738856448, 18571329536, 60098084864, 194481487872, 629355315200, 2036636581888]

cp's OEIS Frontend

A087206 a(n) = 2a(n-1) + 4a(n-2); with a(0)=1, a(1)=4.

Table of values

List of values

cp's OEIS Frontend

A087206 a(n) = 2*a(n-1) + 4*a(n-2); with a(0)=1, a(1)=4.

Table of values

List of values

A087206 a(n) = 2a(n-1) + 4a(n-2); with a(0)=1, a(1)=4.