A282516 - cp's OEIS frontend

A282516 Number T(n,k) of k-element subsets of [n] having a prime element sum; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	1
6	0
7	2
8	2
9	0
10	0
11	2
12	4
13	1
14	0
15	0
16	3
17	5
18	2
19	2
20	0
21	0
22	3
23	7
24	6
25	4
26	2
27	0
28	0
29	4
30	9
31	10
32	11
33	7
34	1
35	0
36	0
37	4
38	11
39	18
40	21
41	13
42	7
43	2
44	0
45	0
46	4
47	14
48	26
49	34
50	31
51	20
52	7
53	3
54	0
55	0
56	4
57	18
58	37
59	53
60	59
61	51
62	32
63	11
64	2
65	0
66	0
67	5
68	21
69	47
70	82
71	110
72	117
73	85
74	35
75	12
76	2
77	0

[0, 0, 0, 0, 1, 1, 0, 2, 2, 0, 0, 2, 4, 1, 0, 0, 3, 5, 2, 2, 0, 0, 3, 7, 6, 4, 2, 0, 0, 4, 9, 10, 11, 7, 1, 0, 0, 4, 11, 18, 21, 13, 7, 2, 0, 0, 4, 14, 26, 34, 31, 20, 7, 3, 0, 0, 4, 18, 37, 53, 59, 51, 32, 11, 2, 0, 0, 5, 21, 47, 82, 110, 117, 85, 35, 12, 2, 0]

cp's OEIS Frontend

A282516 Number T(n,k) of k-element subsets of [n] having a prime element sum; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	1
6	0
7	2
8	2
9	0
10	0
11	2
12	4
13	1
14	0
15	0
16	3
17	5
18	2
19	2
20	0
21	0
22	3
23	7
24	6
25	4
26	2
27	0
28	0
29	4
30	9
31	10
32	11
33	7
34	1
35	0
36	0
37	4
38	11
39	18
40	21
41	13
42	7
43	2
44	0
45	0
46	4
47	14
48	26
49	34
50	31
51	20
52	7
53	3
54	0
55	0
56	4
57	18
58	37
59	53
60	59
61	51
62	32
63	11
64	2
65	0
66	0
67	5
68	21
69	47
70	82
71	110
72	117
73	85
74	35
75	12
76	2
77	0

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	1
6	0
7	2
8	2
9	0
10	0
11	2
12	4
13	1
14	0
15	0
16	3
17	5
18	2
19	2
20	0
21	0
22	3
23	7
24	6
25	4
26	2
27	0
28	0
29	4
30	9
31	10
32	11
33	7
34	1
35	0
36	0
37	4
38	11
39	18
40	21
41	13
42	7
43	2
44	0
45	0
46	4
47	14
48	26
49	34
50	31
51	20
52	7
53	3
54	0
55	0
56	4
57	18
58	37
59	53
60	59
61	51
62	32
63	11
64	2
65	0
66	0
67	5
68	21
69	47
70	82
71	110
72	117
73	85
74	35
75	12
76	2
77	0

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	1
6	0
7	2
8	2
9	0
10	0
11	2
12	4
13	1
14	0
15	0
16	3
17	5
18	2
19	2
20	0
21	0
22	3
23	7
24	6
25	4
26	2
27	0
28	0
29	4
30	9
31	10
32	11
33	7
34	1
35	0
36	0
37	4
38	11
39	18
40	21
41	13
42	7
43	2
44	0
45	0
46	4
47	14
48	26
49	34
50	31
51	20
52	7
53	3
54	0
55	0
56	4
57	18
58	37
59	53
60	59
61	51
62	32
63	11
64	2
65	0
66	0
67	5
68	21
69	47
70	82
71	110
72	117
73	85
74	35
75	12
76	2
77	0