A277950 - cp's OEIS frontend

A277950 Triangle read by rows, in which row n gives coefficients in expansion of ((x^n - 1)/(x - 1))^5.

n	a(n)
1	1
2	1
3	5
4	10
5	10
6	5
7	1
8	1
9	5
10	15
11	30
12	45
13	51
14	45
15	30
16	15
17	5
18	1
19	1
20	5
21	15
22	35
23	65
24	101
25	135
26	155
27	155
28	135
29	101
30	65
31	35
32	15
33	5
34	1
35	1
36	5
37	15
38	35
39	70
40	121
41	185
42	255
43	320
44	365
45	381
46	365
47	320
48	255
49	185
50	121
51	70
52	35
53	15
54	5
55	1

[1, 1, 5, 10, 10, 5, 1, 1, 5, 15, 30, 45, 51, 45, 30, 15, 5, 1, 1, 5, 15, 35, 65, 101, 135, 155, 155, 135, 101, 65, 35, 15, 5, 1, 1, 5, 15, 35, 70, 121, 185, 255, 320, 365, 381, 365, 320, 255, 185, 121, 70, 35, 15, 5, 1]

cp's OEIS Frontend

A277950 Triangle read by rows, in which row n gives coefficients in expansion of ((x^n - 1)/(x - 1))^5.

Table of values

List of values

n	a(n)
1	1
2	1
3	5
4	10
5	10
6	5
7	1
8	1
9	5
10	15
11	30
12	45
13	51
14	45
15	30
16	15
17	5
18	1
19	1
20	5
21	15
22	35
23	65
24	101
25	135
26	155
27	155
28	135
29	101
30	65
31	35
32	15
33	5
34	1
35	1
36	5
37	15
38	35
39	70
40	121
41	185
42	255
43	320
44	365
45	381
46	365
47	320
48	255
49	185
50	121
51	70
52	35
53	15
54	5
55	1

n	a(n)
1	1
2	1
3	5
4	10
5	10
6	5
7	1
8	1
9	5
10	15
11	30
12	45
13	51
14	45
15	30
16	15
17	5
18	1
19	1
20	5
21	15
22	35
23	65
24	101
25	135
26	155
27	155
28	135
29	101
30	65
31	35
32	15
33	5
34	1
35	1
36	5
37	15
38	35
39	70
40	121
41	185
42	255
43	320
44	365
45	381
46	365
47	320
48	255
49	185
50	121
51	70
52	35
53	15
54	5
55	1

n	a(n)
1	1
2	1
3	5
4	10
5	10
6	5
7	1
8	1
9	5
10	15
11	30
12	45
13	51
14	45
15	30
16	15
17	5
18	1
19	1
20	5
21	15
22	35
23	65
24	101
25	135
26	155
27	155
28	135
29	101
30	65
31	35
32	15
33	5
34	1
35	1
36	5
37	15
38	35
39	70
40	121
41	185
42	255
43	320
44	365
45	381
46	365
47	320
48	255
49	185
50	121
51	70
52	35
53	15
54	5
55	1