A181716 - cp's OEIS frontend

A181716 a(n) = a(n-1) + a(n-2) + (-1)^n, with a(0)=0 and a(1)=1.

n	a(n)
0	0
1	1
2	2
3	2
4	5
5	6
6	12
7	17
8	30
9	46
10	77
11	122
12	200
13	321
14	522
15	842
16	1365
17	2206
18	3572
19	5777
20	9350
21	15126
22	24477
23	39602
24	64080
25	103681
26	167762
27	271442
28	439205
29	710646
30	1149852
31	1860497
32	3010350
33	4870846
34	7881197
35	12752042
36	20633240
37	33385281
38	54018522
39	87403802

[0, 1, 2, 2, 5, 6, 12, 17, 30, 46, 77, 122, 200, 321, 522, 842, 1365, 2206, 3572, 5777, 9350, 15126, 24477, 39602, 64080, 103681, 167762, 271442, 439205, 710646, 1149852, 1860497, 3010350, 4870846, 7881197, 12752042, 20633240, 33385281, 54018522, 87403802]

cp's OEIS Frontend

A181716 a(n) = a(n-1) + a(n-2) + (-1)^n, with a(0)=0 and a(1)=1.

Table of values

List of values