A176653 - cp's OEIS frontend

A176653 Triangle, read by rows, defined by T(n, m) = f(n-m)f(n) - f(n-0)f(0) + 1, where f(n) is 1 if n = 0 and Prime(n) otherwise.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	2
8	2
9	1
10	1
11	4
12	3
13	4
14	1
15	1
16	4
17	5
18	5
19	4
20	1
21	1
22	10
23	9
24	13
25	9
26	10
27	1
28	1
29	10
30	17
31	19
32	19
33	17
34	10
35	1
36	1
37	16
38	21
39	37
40	31
41	37
42	21
43	16
44	1
45	1
46	16
47	29
48	43
49	55
50	55
51	43
52	29
53	16
54	1
55	1
56	18
57	29
58	57
59	63
60	93
61	63
62	57
63	29
64	18
65	1

[1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 4, 3, 4, 1, 1, 4, 5, 5, 4, 1, 1, 10, 9, 13, 9, 10, 1, 1, 10, 17, 19, 19, 17, 10, 1, 1, 16, 21, 37, 31, 37, 21, 16, 1, 1, 16, 29, 43, 55, 55, 43, 29, 16, 1, 1, 18, 29, 57, 63, 93, 63, 57, 29, 18, 1]

cp's OEIS Frontend

A176653 Triangle, read by rows, defined by T(n, m) = f(n-m)f(n) - f(n-0)f(0) + 1, where f(n) is 1 if n = 0 and Prime(n) otherwise.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	2
8	2
9	1
10	1
11	4
12	3
13	4
14	1
15	1
16	4
17	5
18	5
19	4
20	1
21	1
22	10
23	9
24	13
25	9
26	10
27	1
28	1
29	10
30	17
31	19
32	19
33	17
34	10
35	1
36	1
37	16
38	21
39	37
40	31
41	37
42	21
43	16
44	1
45	1
46	16
47	29
48	43
49	55
50	55
51	43
52	29
53	16
54	1
55	1
56	18
57	29
58	57
59	63
60	93
61	63
62	57
63	29
64	18
65	1

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	2
8	2
9	1
10	1
11	4
12	3
13	4
14	1
15	1
16	4
17	5
18	5
19	4
20	1
21	1
22	10
23	9
24	13
25	9
26	10
27	1
28	1
29	10
30	17
31	19
32	19
33	17
34	10
35	1
36	1
37	16
38	21
39	37
40	31
41	37
42	21
43	16
44	1
45	1
46	16
47	29
48	43
49	55
50	55
51	43
52	29
53	16
54	1
55	1
56	18
57	29
58	57
59	63
60	93
61	63
62	57
63	29
64	18
65	1

cp's OEIS Frontend

A176653 Triangle, read by rows, defined by T(n, m) = f(n-m)*f(n) - f(n-0)*f(0) + 1, where f(n) is 1 if n = 0 and Prime(n) otherwise.

Table of values

List of values

A176653 Triangle, read by rows, defined by T(n, m) = f(n-m)f(n) - f(n-0)f(0) + 1, where f(n) is 1 if n = 0 and Prime(n) otherwise.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	2
8	2
9	1
10	1
11	4
12	3
13	4
14	1
15	1
16	4
17	5
18	5
19	4
20	1
21	1
22	10
23	9
24	13
25	9
26	10
27	1
28	1
29	10
30	17
31	19
32	19
33	17
34	10
35	1
36	1
37	16
38	21
39	37
40	31
41	37
42	21
43	16
44	1
45	1
46	16
47	29
48	43
49	55
50	55
51	43
52	29
53	16
54	1
55	1
56	18
57	29
58	57
59	63
60	93
61	63
62	57
63	29
64	18
65	1