A260721 - cp's OEIS frontend

A260721 Half the difference between n-th odd Ludic and n-th Lucky number: a(1) = 0; a(n) = (A003309(n+1) - A000959(n))/2.

n	a(n)
1	0
2	0
3	-1
4	-1
5	-1
6	-1
7	-2
8	-1
9	-3
10	-2
11	0
12	-1
13	-3
14	-2
15	-5
16	-3
17	-1
18	-1
19	1
20	2
21	1
22	-1
23	-1
24	1
25	2
26	2
27	-3
28	-1
29	-1
30	4
31	4
32	3
33	1
34	5
35	3
36	4
37	-4
38	0
39	7
40	5
41	8
42	6
43	4
44	5
45	2
46	2
47	5
48	8
49	3
50	8
51	8
52	7
53	9
54	11
55	12
56	16
57	14
58	15
59	11
60	16
61	16
62	15
63	19
64	17
65	16
66	18
67	20
68	15
69	14
70	14
71	16
72	12
73	11
74	12
75	18
76	19
77	21
78	15
79	15
80	11
81	13
82	13
83	15
84	19
85	20
86	15
87	18
88	23
89	24
90	23
91	28
92	27
93	27
94	27
95	20
96	23

[0, 0, -1, -1, -1, -1, -2, -1, -3, -2, 0, -1, -3, -2, -5, -3, -1, -1, 1, 2, 1, -1, -1, 1, 2, 2, -3, -1, -1, 4, 4, 3, 1, 5, 3, 4, -4, 0, 7, 5, 8, 6, 4, 5, 2, 2, 5, 8, 3, 8, 8, 7, 9, 11, 12, 16, 14, 15, 11, 16, 16, 15, 19, 17, 16, 18, 20, 15, 14, 14, 16, 12, 11, 12, 18, 19, 21, 15, 15, 11, 13, 13, 15, 19, 20, 15, 18, 23, 24, 23, 28, 27, 27, 27, 20, 23]

cp's OEIS Frontend

A260721 Half the difference between n-th odd Ludic and n-th Lucky number: a(1) = 0; a(n) = (A003309(n+1) - A000959(n))/2.

Table of values

List of values

n	a(n)
1	0
2	0
3	-1
4	-1
5	-1
6	-1
7	-2
8	-1
9	-3
10	-2
11	0
12	-1
13	-3
14	-2
15	-5
16	-3
17	-1
18	-1
19	1
20	2
21	1
22	-1
23	-1
24	1
25	2
26	2
27	-3
28	-1
29	-1
30	4
31	4
32	3
33	1
34	5
35	3
36	4
37	-4
38	0
39	7
40	5
41	8
42	6
43	4
44	5
45	2
46	2
47	5
48	8
49	3
50	8
51	8
52	7
53	9
54	11
55	12
56	16
57	14
58	15
59	11
60	16
61	16
62	15
63	19
64	17
65	16
66	18
67	20
68	15
69	14
70	14
71	16
72	12
73	11
74	12
75	18
76	19
77	21
78	15
79	15
80	11
81	13
82	13
83	15
84	19
85	20
86	15
87	18
88	23
89	24
90	23
91	28
92	27
93	27
94	27
95	20
96	23

n	a(n)
1	0
2	0
3	-1
4	-1
5	-1
6	-1
7	-2
8	-1
9	-3
10	-2
11	0
12	-1
13	-3
14	-2
15	-5
16	-3
17	-1
18	-1
19	1
20	2
21	1
22	-1
23	-1
24	1
25	2
26	2
27	-3
28	-1
29	-1
30	4
31	4
32	3
33	1
34	5
35	3
36	4
37	-4
38	0
39	7
40	5
41	8
42	6
43	4
44	5
45	2
46	2
47	5
48	8
49	3
50	8
51	8
52	7
53	9
54	11
55	12
56	16
57	14
58	15
59	11
60	16
61	16
62	15
63	19
64	17
65	16
66	18
67	20
68	15
69	14
70	14
71	16
72	12
73	11
74	12
75	18
76	19
77	21
78	15
79	15
80	11
81	13
82	13
83	15
84	19
85	20
86	15
87	18
88	23
89	24
90	23
91	28
92	27
93	27
94	27
95	20
96	23

n	a(n)
1	0
2	0
3	-1
4	-1
5	-1
6	-1
7	-2
8	-1
9	-3
10	-2
11	0
12	-1
13	-3
14	-2
15	-5
16	-3
17	-1
18	-1
19	1
20	2
21	1
22	-1
23	-1
24	1
25	2
26	2
27	-3
28	-1
29	-1
30	4
31	4
32	3
33	1
34	5
35	3
36	4
37	-4
38	0
39	7
40	5
41	8
42	6
43	4
44	5
45	2
46	2
47	5
48	8
49	3
50	8
51	8
52	7
53	9
54	11
55	12
56	16
57	14
58	15
59	11
60	16
61	16
62	15
63	19
64	17
65	16
66	18
67	20
68	15
69	14
70	14
71	16
72	12
73	11
74	12
75	18
76	19
77	21
78	15
79	15
80	11
81	13
82	13
83	15
84	19
85	20
86	15
87	18
88	23
89	24
90	23
91	28
92	27
93	27
94	27
95	20
96	23