A253198 - cp's OEIS frontend

A253198 a(n) = a(n-1) + a(n-2) - (-1)^(a(n-1) + a(n-2)) with a(0)=0, a(1)=1.

n	a(n)
0	0
1	1
2	2
3	4
4	5
5	10
6	16
7	25
8	42
9	68
10	109
11	178
12	288
13	465
14	754
15	1220
16	1973
17	3194
18	5168
19	8361
20	13530
21	21892
22	35421
23	57314
24	92736
25	150049
26	242786
27	392836
28	635621
29	1028458
30	1664080
31	2692537
32	4356618
33	7049156
34	11405773
35	18454930
36	29860704
37	48315633
38	78176338
39	126491972
40	204668309
41	331160282
42	535828592

[0, 1, 2, 4, 5, 10, 16, 25, 42, 68, 109, 178, 288, 465, 754, 1220, 1973, 3194, 5168, 8361, 13530, 21892, 35421, 57314, 92736, 150049, 242786, 392836, 635621, 1028458, 1664080, 2692537, 4356618, 7049156, 11405773, 18454930, 29860704, 48315633, 78176338, 126491972, 204668309, 331160282, 535828592]

cp's OEIS Frontend

A253198 a(n) = a(n-1) + a(n-2) - (-1)^(a(n-1) + a(n-2)) with a(0)=0, a(1)=1.

Table of values

List of values