A220645 - cp's OEIS frontend

A220645 T(n,k): number of binomial coefficients C(n,r), for 0 <= r <= n, divisible by 2^k.

n	a(n)
0	1
1	2
2	0
3	3
4	1
5	0
6	4
7	0
8	0
9	0
10	5
11	3
12	2
13	0
14	0
15	6
16	2
17	0
18	0
19	0
20	0
21	7
22	3
23	1
24	0
25	0
26	0
27	0
28	8
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	9
37	7
38	6
39	4
40	0
41	0
42	0
43	0
44	0
45	10
46	6
47	4
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	11
56	7
57	3
58	2
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	12
67	4
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	0
77	0
78	13
79	9
80	7
81	2
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0

[1, 2, 0, 3, 1, 0, 4, 0, 0, 0, 5, 3, 2, 0, 0, 6, 2, 0, 0, 0, 0, 7, 3, 1, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 9, 7, 6, 4, 0, 0, 0, 0, 0, 10, 6, 4, 0, 0, 0, 0, 0, 0, 0, 11, 7, 3, 2, 0, 0, 0, 0, 0, 0, 0, 12, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13, 9, 7, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A220645 T(n,k): number of binomial coefficients C(n,r), for 0 <= r <= n, divisible by 2^k.

Table of values

List of values

n	a(n)
0	1
1	2
2	0
3	3
4	1
5	0
6	4
7	0
8	0
9	0
10	5
11	3
12	2
13	0
14	0
15	6
16	2
17	0
18	0
19	0
20	0
21	7
22	3
23	1
24	0
25	0
26	0
27	0
28	8
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	9
37	7
38	6
39	4
40	0
41	0
42	0
43	0
44	0
45	10
46	6
47	4
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	11
56	7
57	3
58	2
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	12
67	4
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	0
77	0
78	13
79	9
80	7
81	2
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0

n	a(n)
0	1
1	2
2	0
3	3
4	1
5	0
6	4
7	0
8	0
9	0
10	5
11	3
12	2
13	0
14	0
15	6
16	2
17	0
18	0
19	0
20	0
21	7
22	3
23	1
24	0
25	0
26	0
27	0
28	8
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	9
37	7
38	6
39	4
40	0
41	0
42	0
43	0
44	0
45	10
46	6
47	4
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	11
56	7
57	3
58	2
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	12
67	4
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	0
77	0
78	13
79	9
80	7
81	2
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0

n	a(n)
0	1
1	2
2	0
3	3
4	1
5	0
6	4
7	0
8	0
9	0
10	5
11	3
12	2
13	0
14	0
15	6
16	2
17	0
18	0
19	0
20	0
21	7
22	3
23	1
24	0
25	0
26	0
27	0
28	8
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	9
37	7
38	6
39	4
40	0
41	0
42	0
43	0
44	0
45	10
46	6
47	4
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	11
56	7
57	3
58	2
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	12
67	4
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	0
77	0
78	13
79	9
80	7
81	2
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0