A385825 - cp's OEIS frontend

A385825 a(n) = Sum_{k=0..n} (binomial(n, k) mod 5).

n	a(n)
0	1
1	2
2	4
3	8
4	11
5	2
6	4
7	8
8	16
9	22
10	4
11	8
12	16
13	22
14	34
15	8
16	16
17	22
18	44
19	48
20	11
21	22
22	34
23	48
24	61
25	2
26	4
27	8
28	16
29	22
30	4
31	8
32	16
33	32
34	44
35	8
36	16
37	32
38	44
39	68
40	16
41	32
42	44
43	88
44	96
45	22
46	44
47	68
48	96
49	122
50	4
51	8
52	16
53	22
54	34
55	8
56	16
57	32
58	44
59	68
60	16
61	32
62	59
63	68
64	106
65	22
66	44
67	68
68	116
69	142

[1, 2, 4, 8, 11, 2, 4, 8, 16, 22, 4, 8, 16, 22, 34, 8, 16, 22, 44, 48, 11, 22, 34, 48, 61, 2, 4, 8, 16, 22, 4, 8, 16, 32, 44, 8, 16, 32, 44, 68, 16, 32, 44, 88, 96, 22, 44, 68, 96, 122, 4, 8, 16, 22, 34, 8, 16, 32, 44, 68, 16, 32, 59, 68, 106, 22, 44, 68, 116, 142]

cp's OEIS Frontend

A385825 a(n) = Sum_{k=0..n} (binomial(n, k) mod 5).

Table of values

List of values

n	a(n)
0	1
1	2
2	4
3	8
4	11
5	2
6	4
7	8
8	16
9	22
10	4
11	8
12	16
13	22
14	34
15	8
16	16
17	22
18	44
19	48
20	11
21	22
22	34
23	48
24	61
25	2
26	4
27	8
28	16
29	22
30	4
31	8
32	16
33	32
34	44
35	8
36	16
37	32
38	44
39	68
40	16
41	32
42	44
43	88
44	96
45	22
46	44
47	68
48	96
49	122
50	4
51	8
52	16
53	22
54	34
55	8
56	16
57	32
58	44
59	68
60	16
61	32
62	59
63	68
64	106
65	22
66	44
67	68
68	116
69	142

n	a(n)
0	1
1	2
2	4
3	8
4	11
5	2
6	4
7	8
8	16
9	22
10	4
11	8
12	16
13	22
14	34
15	8
16	16
17	22
18	44
19	48
20	11
21	22
22	34
23	48
24	61
25	2
26	4
27	8
28	16
29	22
30	4
31	8
32	16
33	32
34	44
35	8
36	16
37	32
38	44
39	68
40	16
41	32
42	44
43	88
44	96
45	22
46	44
47	68
48	96
49	122
50	4
51	8
52	16
53	22
54	34
55	8
56	16
57	32
58	44
59	68
60	16
61	32
62	59
63	68
64	106
65	22
66	44
67	68
68	116
69	142

n	a(n)
0	1
1	2
2	4
3	8
4	11
5	2
6	4
7	8
8	16
9	22
10	4
11	8
12	16
13	22
14	34
15	8
16	16
17	22
18	44
19	48
20	11
21	22
22	34
23	48
24	61
25	2
26	4
27	8
28	16
29	22
30	4
31	8
32	16
33	32
34	44
35	8
36	16
37	32
38	44
39	68
40	16
41	32
42	44
43	88
44	96
45	22
46	44
47	68
48	96
49	122
50	4
51	8
52	16
53	22
54	34
55	8
56	16
57	32
58	44
59	68
60	16
61	32
62	59
63	68
64	106
65	22
66	44
67	68
68	116
69	142