A245971 - cp's OEIS frontend

A245971 Tower of 4s mod n.

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

[0, 0, 1, 0, 1, 4, 4, 0, 4, 6, 4, 4, 9, 4, 1, 0, 1, 4, 9, 16, 4, 4, 3, 16, 21, 22, 13, 4, 24, 16, 4, 0, 4, 18, 11, 4, 34, 28, 22, 16, 37, 4, 41, 4, 31, 26, 17, 16, 11, 46, 1, 48, 47, 40, 26, 32, 28, 24, 45, 16, 57, 4, 4, 0, 61, 4, 55, 52, 49, 46, 50, 40, 37]

cp's OEIS Frontend

A245971 Tower of 4s mod n.

Table of values

List of values

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

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

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