A332781 - cp's OEIS frontend

A332781 a(n) = (a(n-1) XOR a(n-4)) + 1, a(0) = a(1) = a(2) = a(3) = 0.

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	2
6	3
7	4
8	6
9	5
10	7
11	4
12	3
13	7
14	1
15	6
16	6
17	2
18	4
19	3
20	6
21	5
22	2
23	2
24	5
25	1
26	4
27	7
28	3
29	3
30	8
31	16
32	20
33	24
34	17
35	2
36	23
37	16
38	2
39	1
40	23
41	8
42	11
43	11
44	29
45	22
46	30
47	22
48	12
49	27
50	6
51	17
52	30
53	6
54	1
55	17
56	16
57	23
58	23
59	7
60	24
61	16
62	8
63	16
64	9
65	26
66	19
67	4
68	14
69	21
70	7
71	4
72	11
73	31
74	25
75	30
76	22
77	10
78	20

[0, 0, 0, 0, 1, 2, 3, 4, 6, 5, 7, 4, 3, 7, 1, 6, 6, 2, 4, 3, 6, 5, 2, 2, 5, 1, 4, 7, 3, 3, 8, 16, 20, 24, 17, 2, 23, 16, 2, 1, 23, 8, 11, 11, 29, 22, 30, 22, 12, 27, 6, 17, 30, 6, 1, 17, 16, 23, 23, 7, 24, 16, 8, 16, 9, 26, 19, 4, 14, 21, 7, 4, 11, 31, 25, 30, 22, 10, 20]

cp's OEIS Frontend

A332781 a(n) = (a(n-1) XOR a(n-4)) + 1, a(0) = a(1) = a(2) = a(3) = 0.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	2
6	3
7	4
8	6
9	5
10	7
11	4
12	3
13	7
14	1
15	6
16	6
17	2
18	4
19	3
20	6
21	5
22	2
23	2
24	5
25	1
26	4
27	7
28	3
29	3
30	8
31	16
32	20
33	24
34	17
35	2
36	23
37	16
38	2
39	1
40	23
41	8
42	11
43	11
44	29
45	22
46	30
47	22
48	12
49	27
50	6
51	17
52	30
53	6
54	1
55	17
56	16
57	23
58	23
59	7
60	24
61	16
62	8
63	16
64	9
65	26
66	19
67	4
68	14
69	21
70	7
71	4
72	11
73	31
74	25
75	30
76	22
77	10
78	20

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	2
6	3
7	4
8	6
9	5
10	7
11	4
12	3
13	7
14	1
15	6
16	6
17	2
18	4
19	3
20	6
21	5
22	2
23	2
24	5
25	1
26	4
27	7
28	3
29	3
30	8
31	16
32	20
33	24
34	17
35	2
36	23
37	16
38	2
39	1
40	23
41	8
42	11
43	11
44	29
45	22
46	30
47	22
48	12
49	27
50	6
51	17
52	30
53	6
54	1
55	17
56	16
57	23
58	23
59	7
60	24
61	16
62	8
63	16
64	9
65	26
66	19
67	4
68	14
69	21
70	7
71	4
72	11
73	31
74	25
75	30
76	22
77	10
78	20

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	2
6	3
7	4
8	6
9	5
10	7
11	4
12	3
13	7
14	1
15	6
16	6
17	2
18	4
19	3
20	6
21	5
22	2
23	2
24	5
25	1
26	4
27	7
28	3
29	3
30	8
31	16
32	20
33	24
34	17
35	2
36	23
37	16
38	2
39	1
40	23
41	8
42	11
43	11
44	29
45	22
46	30
47	22
48	12
49	27
50	6
51	17
52	30
53	6
54	1
55	17
56	16
57	23
58	23
59	7
60	24
61	16
62	8
63	16
64	9
65	26
66	19
67	4
68	14
69	21
70	7
71	4
72	11
73	31
74	25
75	30
76	22
77	10
78	20