A071408 - cp's OEIS frontend

A071408 a(n+1) - 2a(n) + a(n-1) = (2/3)(1 + w^(n+1) + w^(2*n+2)) with a(1)=0, a(2)=1, and where w is the imaginary cubic root of unity.

n	a(n)
1	0
2	1
3	4
4	7
5	10
6	15
7	20
8	25
9	32
10	39
11	46
12	55
13	64
14	73
15	84
16	95
17	106
18	119
19	132
20	145
21	160
22	175
23	190
24	207
25	224
26	241
27	260
28	279
29	298
30	319
31	340
32	361
33	384
34	407
35	430
36	455
37	480
38	505
39	532
40	559
41	586
42	615
43	644
44	673
45	704
46	735
47	766
48	799
49	832
50	865
51	900
52	935
53	970
54	1007
55	1044

[0, 1, 4, 7, 10, 15, 20, 25, 32, 39, 46, 55, 64, 73, 84, 95, 106, 119, 132, 145, 160, 175, 190, 207, 224, 241, 260, 279, 298, 319, 340, 361, 384, 407, 430, 455, 480, 505, 532, 559, 586, 615, 644, 673, 704, 735, 766, 799, 832, 865, 900, 935, 970, 1007, 1044]

cp's OEIS Frontend

A071408 a(n+1) - 2a(n) + a(n-1) = (2/3)(1 + w^(n+1) + w^(2*n+2)) with a(1)=0, a(2)=1, and where w is the imaginary cubic root of unity.

Table of values

List of values

cp's OEIS Frontend

A071408 a(n+1) - 2*a(n) + a(n-1) = (2/3)*(1 + w^(n+1) + w^(2*n+2)) with a(1)=0, a(2)=1, and where w is the imaginary cubic root of unity.

Table of values

List of values

A071408 a(n+1) - 2a(n) + a(n-1) = (2/3)(1 + w^(n+1) + w^(2*n+2)) with a(1)=0, a(2)=1, and where w is the imaginary cubic root of unity.