A066983 - cp's OEIS frontend

A066983 a(n+2) = a(n+1) + a(n) + (-1)^n, with a(1) = a(2) = 1.

n	a(n)
1	1
2	1
3	1
4	3
5	3
6	7
7	9
8	17
9	25
10	43
11	67
12	111
13	177
14	289
15	465
16	755
17	1219
18	1975
19	3193
20	5169
21	8361
22	13531
23	21891
24	35423
25	57313
26	92737
27	150049
28	242787
29	392835
30	635623
31	1028457
32	1664081
33	2692537
34	4356619
35	7049155
36	11405775
37	18454929
38	29860705
39	48315633
40	78176339

[1, 1, 1, 3, 3, 7, 9, 17, 25, 43, 67, 111, 177, 289, 465, 755, 1219, 1975, 3193, 5169, 8361, 13531, 21891, 35423, 57313, 92737, 150049, 242787, 392835, 635623, 1028457, 1664081, 2692537, 4356619, 7049155, 11405775, 18454929, 29860705, 48315633, 78176339]

cp's OEIS Frontend

A066983 a(n+2) = a(n+1) + a(n) + (-1)^n, with a(1) = a(2) = 1.

Table of values

List of values