A298564 - cp's OEIS frontend

A298564 a(n) = (3^(n+2)+11)/2 - 52^(n+1) + 2n.

n	a(n)
0	0
1	1
2	10
3	53
4	218
5	789
6	2658
7	8581
8	26986
9	83477
10	255506
11	776709
12	2350554
13	7092565
14	21359554
15	64242437
16	193054922
17	579820053
18	1740770802
19	5224933765
20	15680044090
21	47050617941
22	141172825250
23	423560418693
24	1270765142058
25	3812463198229
26	11437725138898
27	34313846505221
28	102942881692826

[0, 1, 10, 53, 218, 789, 2658, 8581, 26986, 83477, 255506, 776709, 2350554, 7092565, 21359554, 64242437, 193054922, 579820053, 1740770802, 5224933765, 15680044090, 47050617941, 141172825250, 423560418693, 1270765142058, 3812463198229, 11437725138898, 34313846505221, 102942881692826]

cp's OEIS Frontend

A298564 a(n) = (3^(n+2)+11)/2 - 52^(n+1) + 2n.

Table of values

List of values

cp's OEIS Frontend

A298564 a(n) = (3^(n+2)+11)/2 - 5*2^(n+1) + 2*n.

Table of values

List of values

A298564 a(n) = (3^(n+2)+11)/2 - 52^(n+1) + 2n.