A025579 - cp's OEIS frontend

A025579 a(1)=1, a(2)=2, a(n) = 4*3^(n-3) for n >= 3.

n	a(n)
1	1
2	2
3	4
4	12
5	36
6	108
7	324
8	972
9	2916
10	8748
11	26244
12	78732
13	236196
14	708588
15	2125764
16	6377292
17	19131876
18	57395628
19	172186884
20	516560652
21	1549681956
22	4649045868
23	13947137604
24	41841412812
25	125524238436
26	376572715308
27	1129718145924

[1, 2, 4, 12, 36, 108, 324, 972, 2916, 8748, 26244, 78732, 236196, 708588, 2125764, 6377292, 19131876, 57395628, 172186884, 516560652, 1549681956, 4649045868, 13947137604, 41841412812, 125524238436, 376572715308, 1129718145924]

cp's OEIS Frontend

A025579 a(1)=1, a(2)=2, a(n) = 4*3^(n-3) for n >= 3.

Table of values

List of values