A077070 - cp's OEIS frontend

A077070 Triangle read by rows: T(n,k) is the power of 2 in denominator of coefficients of Legendre polynomials, where n >= 0 and 0 <= k <= n.

n	a(n)
0	0
1	1
2	1
3	3
4	2
5	3
6	4
7	4
8	4
9	4
10	7
11	5
12	6
13	5
14	7
15	8
16	8
17	7
18	7
19	8
20	8
21	10
22	9
23	10
24	8
25	10
26	9
27	10
28	11
29	11
30	11
31	11
32	11
33	11
34	11
35	11
36	15
37	12
38	13
39	12
40	14
41	12
42	13
43	12
44	15
45	16
46	16
47	14
48	14
49	15
50	15
51	14
52	14
53	16
54	16
55	18
56	17
57	18
58	15
59	17
60	16
61	17
62	15
63	18
64	17
65	18
66	19
67	19
68	19
69	19
70	18
71	18
72	18
73	18
74	19
75	19
76	19
77	19
78	22
79	20
80	21
81	20
82	22
83	19
84	20
85	19
86	22
87	20
88	21
89	20
90	22

[0, 1, 1, 3, 2, 3, 4, 4, 4, 4, 7, 5, 6, 5, 7, 8, 8, 7, 7, 8, 8, 10, 9, 10, 8, 10, 9, 10, 11, 11, 11, 11, 11, 11, 11, 11, 15, 12, 13, 12, 14, 12, 13, 12, 15, 16, 16, 14, 14, 15, 15, 14, 14, 16, 16, 18, 17, 18, 15, 17, 16, 17, 15, 18, 17, 18, 19, 19, 19, 19, 18, 18, 18, 18, 19, 19, 19, 19, 22, 20, 21, 20, 22, 19, 20, 19, 22, 20, 21, 20, 22]

cp's OEIS Frontend

A077070 Triangle read by rows: T(n,k) is the power of 2 in denominator of coefficients of Legendre polynomials, where n >= 0 and 0 <= k <= n.

Table of values

List of values

n	a(n)
0	0
1	1
2	1
3	3
4	2
5	3
6	4
7	4
8	4
9	4
10	7
11	5
12	6
13	5
14	7
15	8
16	8
17	7
18	7
19	8
20	8
21	10
22	9
23	10
24	8
25	10
26	9
27	10
28	11
29	11
30	11
31	11
32	11
33	11
34	11
35	11
36	15
37	12
38	13
39	12
40	14
41	12
42	13
43	12
44	15
45	16
46	16
47	14
48	14
49	15
50	15
51	14
52	14
53	16
54	16
55	18
56	17
57	18
58	15
59	17
60	16
61	17
62	15
63	18
64	17
65	18
66	19
67	19
68	19
69	19
70	18
71	18
72	18
73	18
74	19
75	19
76	19
77	19
78	22
79	20
80	21
81	20
82	22
83	19
84	20
85	19
86	22
87	20
88	21
89	20
90	22

n	a(n)
0	0
1	1
2	1
3	3
4	2
5	3
6	4
7	4
8	4
9	4
10	7
11	5
12	6
13	5
14	7
15	8
16	8
17	7
18	7
19	8
20	8
21	10
22	9
23	10
24	8
25	10
26	9
27	10
28	11
29	11
30	11
31	11
32	11
33	11
34	11
35	11
36	15
37	12
38	13
39	12
40	14
41	12
42	13
43	12
44	15
45	16
46	16
47	14
48	14
49	15
50	15
51	14
52	14
53	16
54	16
55	18
56	17
57	18
58	15
59	17
60	16
61	17
62	15
63	18
64	17
65	18
66	19
67	19
68	19
69	19
70	18
71	18
72	18
73	18
74	19
75	19
76	19
77	19
78	22
79	20
80	21
81	20
82	22
83	19
84	20
85	19
86	22
87	20
88	21
89	20
90	22

n	a(n)
0	0
1	1
2	1
3	3
4	2
5	3
6	4
7	4
8	4
9	4
10	7
11	5
12	6
13	5
14	7
15	8
16	8
17	7
18	7
19	8
20	8
21	10
22	9
23	10
24	8
25	10
26	9
27	10
28	11
29	11
30	11
31	11
32	11
33	11
34	11
35	11
36	15
37	12
38	13
39	12
40	14
41	12
42	13
43	12
44	15
45	16
46	16
47	14
48	14
49	15
50	15
51	14
52	14
53	16
54	16
55	18
56	17
57	18
58	15
59	17
60	16
61	17
62	15
63	18
64	17
65	18
66	19
67	19
68	19
69	19
70	18
71	18
72	18
73	18
74	19
75	19
76	19
77	19
78	22
79	20
80	21
81	20
82	22
83	19
84	20
85	19
86	22
87	20
88	21
89	20
90	22