A329301 - cp's OEIS frontend

A329301 a(0) = a(1) = a(2) = 1; thereafter a(n) = a(n-1) - (-1)^na(n-2) + 2a(n-3).

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	3
6	4
7	7
8	9
9	10
10	15
11	23
12	28
13	35
14	53
15	74
16	91
17	123
18	180
19	239
20	305
21	426
22	599
23	783
24	1036
25	1451
26	1981
27	2602
28	3523
29	4883
30	6564
31	8727
32	11929
33	16330
34	21855
35	29383
36	40188
37	54515
38	73093
39	98954
40	134891
41	182123
42	245140
43	332799
44	451905
45	609386
46	823079
47	1117503
48	1513196
49	2041851

[1, 1, 1, 2, 3, 3, 4, 7, 9, 10, 15, 23, 28, 35, 53, 74, 91, 123, 180, 239, 305, 426, 599, 783, 1036, 1451, 1981, 2602, 3523, 4883, 6564, 8727, 11929, 16330, 21855, 29383, 40188, 54515, 73093, 98954, 134891, 182123, 245140, 332799, 451905, 609386, 823079, 1117503, 1513196, 2041851]

cp's OEIS Frontend

A329301 a(0) = a(1) = a(2) = 1; thereafter a(n) = a(n-1) - (-1)^na(n-2) + 2a(n-3).

Table of values

List of values

cp's OEIS Frontend

A329301 a(0) = a(1) = a(2) = 1; thereafter a(n) = a(n-1) - (-1)^n*a(n-2) + 2*a(n-3).

Table of values

List of values

A329301 a(0) = a(1) = a(2) = 1; thereafter a(n) = a(n-1) - (-1)^na(n-2) + 2a(n-3).