A141680 - cp's OEIS frontend

A141680 Triangle read by rows: T(n,m) = (n/m)*binomial(n,m) if m divides n, otherwise 0.

n	a(n)
1	1
2	4
3	1
4	9
5	0
6	1
7	16
8	12
9	0
10	1
11	25
12	0
13	0
14	0
15	1
16	36
17	45
18	40
19	0
20	0
21	1
22	49
23	0
24	0
25	0
26	0
27	0
28	1
29	64
30	112
31	0
32	140
33	0
34	0
35	0
36	1
37	81
38	0
39	252
40	0
41	0
42	0
43	0
44	0
45	1
46	100
47	225
48	0
49	0
50	504
51	0
52	0
53	0
54	0
55	1

[1, 4, 1, 9, 0, 1, 16, 12, 0, 1, 25, 0, 0, 0, 1, 36, 45, 40, 0, 0, 1, 49, 0, 0, 0, 0, 0, 1, 64, 112, 0, 140, 0, 0, 0, 1, 81, 0, 252, 0, 0, 0, 0, 0, 1, 100, 225, 0, 0, 504, 0, 0, 0, 0, 1]

cp's OEIS Frontend

A141680 Triangle read by rows: T(n,m) = (n/m)*binomial(n,m) if m divides n, otherwise 0.

Table of values

List of values

n	a(n)
1	1
2	4
3	1
4	9
5	0
6	1
7	16
8	12
9	0
10	1
11	25
12	0
13	0
14	0
15	1
16	36
17	45
18	40
19	0
20	0
21	1
22	49
23	0
24	0
25	0
26	0
27	0
28	1
29	64
30	112
31	0
32	140
33	0
34	0
35	0
36	1
37	81
38	0
39	252
40	0
41	0
42	0
43	0
44	0
45	1
46	100
47	225
48	0
49	0
50	504
51	0
52	0
53	0
54	0
55	1

n	a(n)
1	1
2	4
3	1
4	9
5	0
6	1
7	16
8	12
9	0
10	1
11	25
12	0
13	0
14	0
15	1
16	36
17	45
18	40
19	0
20	0
21	1
22	49
23	0
24	0
25	0
26	0
27	0
28	1
29	64
30	112
31	0
32	140
33	0
34	0
35	0
36	1
37	81
38	0
39	252
40	0
41	0
42	0
43	0
44	0
45	1
46	100
47	225
48	0
49	0
50	504
51	0
52	0
53	0
54	0
55	1

n	a(n)
1	1
2	4
3	1
4	9
5	0
6	1
7	16
8	12
9	0
10	1
11	25
12	0
13	0
14	0
15	1
16	36
17	45
18	40
19	0
20	0
21	1
22	49
23	0
24	0
25	0
26	0
27	0
28	1
29	64
30	112
31	0
32	140
33	0
34	0
35	0
36	1
37	81
38	0
39	252
40	0
41	0
42	0
43	0
44	0
45	1
46	100
47	225
48	0
49	0
50	504
51	0
52	0
53	0
54	0
55	1