A141041 - cp's OEIS frontend

A141041 a(n) = ((3 + 2sqrt(3))^n + (3 - 2sqrt(3))^n)/2.

n	a(n)
0	1
1	3
2	21
3	135
4	873
5	5643
6	36477
7	235791
8	1524177
9	9852435
10	63687141
11	411680151
12	2661142329
13	17201894427
14	111194793549
15	718774444575
16	4646231048097
17	30033709622307
18	194140950878133
19	1254946834135719
20	8112103857448713

[1, 3, 21, 135, 873, 5643, 36477, 235791, 1524177, 9852435, 63687141, 411680151, 2661142329, 17201894427, 111194793549, 718774444575, 4646231048097, 30033709622307, 194140950878133, 1254946834135719, 8112103857448713]

cp's OEIS Frontend

A141041 a(n) = ((3 + 2sqrt(3))^n + (3 - 2sqrt(3))^n)/2.

Table of values

List of values

cp's OEIS Frontend

A141041 a(n) = ((3 + 2*sqrt(3))^n + (3 - 2*sqrt(3))^n)/2.

Table of values

List of values

A141041 a(n) = ((3 + 2sqrt(3))^n + (3 - 2sqrt(3))^n)/2.