A187017 - cp's OEIS frontend

A187017 Array where the n-th row is the expansion of (1+2x+...+nx^(n-1)) * (n+(n-1)*x+...+x^(n-1)).

n	a(n)
1	1
2	2
3	5
4	2
5	3
6	8
7	14
8	8
9	3
10	4
11	11
12	20
13	30
14	20
15	11
16	4
17	5
18	14
19	26
20	40
21	55
22	40
23	26
24	14
25	5
26	6
27	17
28	32
29	50
30	70
31	91
32	70
33	50
34	32
35	17
36	6
37	7
38	20
39	38
40	60
41	85
42	112
43	140
44	112
45	85
46	60
47	38
48	20
49	7
50	8
51	23
52	44
53	70
54	100
55	133
56	168
57	204
58	168
59	133
60	100
61	70
62	44
63	23
64	8
65	9
66	26
67	50
68	80
69	115
70	154
71	196
72	240
73	285
74	240
75	196
76	154
77	115
78	80
79	50
80	26
81	9

[1, 2, 5, 2, 3, 8, 14, 8, 3, 4, 11, 20, 30, 20, 11, 4, 5, 14, 26, 40, 55, 40, 26, 14, 5, 6, 17, 32, 50, 70, 91, 70, 50, 32, 17, 6, 7, 20, 38, 60, 85, 112, 140, 112, 85, 60, 38, 20, 7, 8, 23, 44, 70, 100, 133, 168, 204, 168, 133, 100, 70, 44, 23, 8, 9, 26, 50, 80, 115, 154, 196, 240, 285, 240, 196, 154, 115, 80, 50, 26, 9]

cp's OEIS Frontend

A187017 Array where the n-th row is the expansion of (1+2x+...+nx^(n-1)) * (n+(n-1)*x+...+x^(n-1)).

Table of values

List of values

n	a(n)
1	1
2	2
3	5
4	2
5	3
6	8
7	14
8	8
9	3
10	4
11	11
12	20
13	30
14	20
15	11
16	4
17	5
18	14
19	26
20	40
21	55
22	40
23	26
24	14
25	5
26	6
27	17
28	32
29	50
30	70
31	91
32	70
33	50
34	32
35	17
36	6
37	7
38	20
39	38
40	60
41	85
42	112
43	140
44	112
45	85
46	60
47	38
48	20
49	7
50	8
51	23
52	44
53	70
54	100
55	133
56	168
57	204
58	168
59	133
60	100
61	70
62	44
63	23
64	8
65	9
66	26
67	50
68	80
69	115
70	154
71	196
72	240
73	285
74	240
75	196
76	154
77	115
78	80
79	50
80	26
81	9

n	a(n)
1	1
2	2
3	5
4	2
5	3
6	8
7	14
8	8
9	3
10	4
11	11
12	20
13	30
14	20
15	11
16	4
17	5
18	14
19	26
20	40
21	55
22	40
23	26
24	14
25	5
26	6
27	17
28	32
29	50
30	70
31	91
32	70
33	50
34	32
35	17
36	6
37	7
38	20
39	38
40	60
41	85
42	112
43	140
44	112
45	85
46	60
47	38
48	20
49	7
50	8
51	23
52	44
53	70
54	100
55	133
56	168
57	204
58	168
59	133
60	100
61	70
62	44
63	23
64	8
65	9
66	26
67	50
68	80
69	115
70	154
71	196
72	240
73	285
74	240
75	196
76	154
77	115
78	80
79	50
80	26
81	9

cp's OEIS Frontend

A187017 Array where the n-th row is the expansion of (1+2*x+...+n*x^(n-1)) * (n+(n-1)*x+...+x^(n-1)).

Table of values

List of values

A187017 Array where the n-th row is the expansion of (1+2x+...+nx^(n-1)) * (n+(n-1)*x+...+x^(n-1)).

n	a(n)
1	1
2	2
3	5
4	2
5	3
6	8
7	14
8	8
9	3
10	4
11	11
12	20
13	30
14	20
15	11
16	4
17	5
18	14
19	26
20	40
21	55
22	40
23	26
24	14
25	5
26	6
27	17
28	32
29	50
30	70
31	91
32	70
33	50
34	32
35	17
36	6
37	7
38	20
39	38
40	60
41	85
42	112
43	140
44	112
45	85
46	60
47	38
48	20
49	7
50	8
51	23
52	44
53	70
54	100
55	133
56	168
57	204
58	168
59	133
60	100
61	70
62	44
63	23
64	8
65	9
66	26
67	50
68	80
69	115
70	154
71	196
72	240
73	285
74	240
75	196
76	154
77	115
78	80
79	50
80	26
81	9