A286390 - cp's OEIS frontend

A286390 a(n) = a(n-2) - 2*a(n-3) + a(n-4) for n>3, a(0)=0, a(1)=2, a(2)=-1, a(3)=3.

n	a(n)
0	0
1	2
2	-1
3	3
4	-5
5	7
6	-12
7	20
8	-31
9	51
10	-83
11	133
12	-216
13	350
14	-565
15	915
16	-1481
17	2395
18	-3876
19	6272
20	-10147
21	16419
22	-26567
23	42985
24	-69552
25	112538
26	-182089
27	294627
28	-476717
29	771343
30	-1248060
31	2019404
32	-3267463
33	5286867
34	-8554331
35	13841197
36	-22395528
37	36236726

[0, 2, -1, 3, -5, 7, -12, 20, -31, 51, -83, 133, -216, 350, -565, 915, -1481, 2395, -3876, 6272, -10147, 16419, -26567, 42985, -69552, 112538, -182089, 294627, -476717, 771343, -1248060, 2019404, -3267463, 5286867, -8554331, 13841197, -22395528, 36236726]

cp's OEIS Frontend

A286390 a(n) = a(n-2) - 2*a(n-3) + a(n-4) for n>3, a(0)=0, a(1)=2, a(2)=-1, a(3)=3.

Table of values

List of values