A066368 - cp's OEIS frontend

A066368 a(n) = (n+2)2^(n-1) - 2n.

n	a(n)
0	1
1	1
2	4
3	14
4	40
5	102
6	244
7	562
8	1264
9	2798
10	6124
11	13290
12	28648
13	61414
14	131044
15	278498
16	589792
17	1245150
18	2621404
19	5504986
20	11534296
21	24117206
22	50331604
23	104857554
24	218103760
25	452984782
26	939524044
27	1946157002
28	4026531784
29	8321499078
30	17179869124
31	35433480130
32	73014443968

[1, 1, 4, 14, 40, 102, 244, 562, 1264, 2798, 6124, 13290, 28648, 61414, 131044, 278498, 589792, 1245150, 2621404, 5504986, 11534296, 24117206, 50331604, 104857554, 218103760, 452984782, 939524044, 1946157002, 4026531784, 8321499078, 17179869124, 35433480130, 73014443968]

cp's OEIS Frontend

A066368 a(n) = (n+2)2^(n-1) - 2n.

Table of values

List of values

cp's OEIS Frontend

A066368 a(n) = (n+2)*2^(n-1) - 2*n.

Table of values

List of values

A066368 a(n) = (n+2)2^(n-1) - 2n.