A133138 - cp's OEIS frontend

A133138 Triangle T(n,k) of the coefficients of the polynomials Q(n,x)=(1+x)[(1+x)^(n-1)+x^(n-1)], Q(0,x)=2.

n	a(n)
0	2
1	2
2	2
3	1
4	3
5	2
6	1
7	3
8	4
9	2
10	1
11	4
12	6
13	5
14	2
15	1
16	5
17	10
18	10
19	6
20	2
21	1
22	6
23	15
24	20
25	15
26	7
27	2
28	1
29	7
30	21
31	35
32	35
33	21
34	8
35	2
36	1
37	8
38	28
39	56
40	70
41	56
42	28
43	9
44	2
45	1
46	9
47	36
48	84
49	126
50	126
51	84
52	36
53	10
54	2
55	1
56	10
57	45
58	120
59	210
60	252
61	210
62	120
63	45
64	11
65	2

[2, 2, 2, 1, 3, 2, 1, 3, 4, 2, 1, 4, 6, 5, 2, 1, 5, 10, 10, 6, 2, 1, 6, 15, 20, 15, 7, 2, 1, 7, 21, 35, 35, 21, 8, 2, 1, 8, 28, 56, 70, 56, 28, 9, 2, 1, 9, 36, 84, 126, 126, 84, 36, 10, 2, 1, 10, 45, 120, 210, 252, 210, 120, 45, 11, 2]

cp's OEIS Frontend

A133138 Triangle T(n,k) of the coefficients of the polynomials Q(n,x)=(1+x)[(1+x)^(n-1)+x^(n-1)], Q(0,x)=2.

Table of values

List of values

n	a(n)
0	2
1	2
2	2
3	1
4	3
5	2
6	1
7	3
8	4
9	2
10	1
11	4
12	6
13	5
14	2
15	1
16	5
17	10
18	10
19	6
20	2
21	1
22	6
23	15
24	20
25	15
26	7
27	2
28	1
29	7
30	21
31	35
32	35
33	21
34	8
35	2
36	1
37	8
38	28
39	56
40	70
41	56
42	28
43	9
44	2
45	1
46	9
47	36
48	84
49	126
50	126
51	84
52	36
53	10
54	2
55	1
56	10
57	45
58	120
59	210
60	252
61	210
62	120
63	45
64	11
65	2

n	a(n)
0	2
1	2
2	2
3	1
4	3
5	2
6	1
7	3
8	4
9	2
10	1
11	4
12	6
13	5
14	2
15	1
16	5
17	10
18	10
19	6
20	2
21	1
22	6
23	15
24	20
25	15
26	7
27	2
28	1
29	7
30	21
31	35
32	35
33	21
34	8
35	2
36	1
37	8
38	28
39	56
40	70
41	56
42	28
43	9
44	2
45	1
46	9
47	36
48	84
49	126
50	126
51	84
52	36
53	10
54	2
55	1
56	10
57	45
58	120
59	210
60	252
61	210
62	120
63	45
64	11
65	2

n	a(n)
0	2
1	2
2	2
3	1
4	3
5	2
6	1
7	3
8	4
9	2
10	1
11	4
12	6
13	5
14	2
15	1
16	5
17	10
18	10
19	6
20	2
21	1
22	6
23	15
24	20
25	15
26	7
27	2
28	1
29	7
30	21
31	35
32	35
33	21
34	8
35	2
36	1
37	8
38	28
39	56
40	70
41	56
42	28
43	9
44	2
45	1
46	9
47	36
48	84
49	126
50	126
51	84
52	36
53	10
54	2
55	1
56	10
57	45
58	120
59	210
60	252
61	210
62	120
63	45
64	11
65	2