A052542 - cp's OEIS frontend

A052542 a(n) = 2*a(n-1) + a(n-2), with a(0) = 1, a(1) = 2, a(2) = 4.

n	a(n)
0	1
1	2
2	4
3	10
4	24
5	58
6	140
7	338
8	816
9	1970
10	4756
11	11482
12	27720
13	66922
14	161564
15	390050
16	941664
17	2273378
18	5488420
19	13250218
20	31988856
21	77227930
22	186444716
23	450117362
24	1086679440
25	2623476242
26	6333631924
27	15290740090
28	36915112104
29	89120964298
30	215157040700

[1, 2, 4, 10, 24, 58, 140, 338, 816, 1970, 4756, 11482, 27720, 66922, 161564, 390050, 941664, 2273378, 5488420, 13250218, 31988856, 77227930, 186444716, 450117362, 1086679440, 2623476242, 6333631924, 15290740090, 36915112104, 89120964298, 215157040700]

cp's OEIS Frontend

A052542 a(n) = 2*a(n-1) + a(n-2), with a(0) = 1, a(1) = 2, a(2) = 4.

Table of values

List of values