A024690 - cp's OEIS frontend

A024690 a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)*t(n+1-k), where k = floor((n+1)/2), s = A001950 (upper Wythoff sequence), t = A023533.

n	a(n)
1	2
2	0
3	0
4	2
5	5
6	7
7	10
8	0
9	0
10	2
11	5
12	7
13	10
14	13
15	15
16	18
17	20
18	23
19	26
20	2
21	5
22	7
23	10
24	13
25	15
26	18
27	20
28	23
29	26
30	28
31	31
32	34
33	36
34	39
35	43
36	49
37	54
38	59
39	65
40	15
41	18
42	20
43	23
44	26
45	28
46	31
47	34
48	36
49	39
50	41
51	44
52	47
53	49
54	52
55	54
56	59
57	65
58	69
59	75
60	81
61	85
62	91
63	95
64	101
65	107
66	111
67	117
68	123
69	127
70	39
71	41
72	44
73	47
74	49
75	52

[2, 0, 0, 2, 5, 7, 10, 0, 0, 2, 5, 7, 10, 13, 15, 18, 20, 23, 26, 2, 5, 7, 10, 13, 15, 18, 20, 23, 26, 28, 31, 34, 36, 39, 43, 49, 54, 59, 65, 15, 18, 20, 23, 26, 28, 31, 34, 36, 39, 41, 44, 47, 49, 52, 54, 59, 65, 69, 75, 81, 85, 91, 95, 101, 107, 111, 117, 123, 127, 39, 41, 44, 47, 49, 52]

cp's OEIS Frontend

A024690 a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)*t(n+1-k), where k = floor((n+1)/2), s = A001950 (upper Wythoff sequence), t = A023533.

Table of values

List of values

n	a(n)
1	2
2	0
3	0
4	2
5	5
6	7
7	10
8	0
9	0
10	2
11	5
12	7
13	10
14	13
15	15
16	18
17	20
18	23
19	26
20	2
21	5
22	7
23	10
24	13
25	15
26	18
27	20
28	23
29	26
30	28
31	31
32	34
33	36
34	39
35	43
36	49
37	54
38	59
39	65
40	15
41	18
42	20
43	23
44	26
45	28
46	31
47	34
48	36
49	39
50	41
51	44
52	47
53	49
54	52
55	54
56	59
57	65
58	69
59	75
60	81
61	85
62	91
63	95
64	101
65	107
66	111
67	117
68	123
69	127
70	39
71	41
72	44
73	47
74	49
75	52

n	a(n)
1	2
2	0
3	0
4	2
5	5
6	7
7	10
8	0
9	0
10	2
11	5
12	7
13	10
14	13
15	15
16	18
17	20
18	23
19	26
20	2
21	5
22	7
23	10
24	13
25	15
26	18
27	20
28	23
29	26
30	28
31	31
32	34
33	36
34	39
35	43
36	49
37	54
38	59
39	65
40	15
41	18
42	20
43	23
44	26
45	28
46	31
47	34
48	36
49	39
50	41
51	44
52	47
53	49
54	52
55	54
56	59
57	65
58	69
59	75
60	81
61	85
62	91
63	95
64	101
65	107
66	111
67	117
68	123
69	127
70	39
71	41
72	44
73	47
74	49
75	52

cp's OEIS Frontend

A024690 a(n) = s(1)*t(n) + s(2)*t(n-1) + ... + s(k)*t(n+1-k), where k = floor((n+1)/2), s = A001950 (upper Wythoff sequence), t = A023533.

Table of values

List of values

A024690 a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)*t(n+1-k), where k = floor((n+1)/2), s = A001950 (upper Wythoff sequence), t = A023533.

n	a(n)
1	2
2	0
3	0
4	2
5	5
6	7
7	10
8	0
9	0
10	2
11	5
12	7
13	10
14	13
15	15
16	18
17	20
18	23
19	26
20	2
21	5
22	7
23	10
24	13
25	15
26	18
27	20
28	23
29	26
30	28
31	31
32	34
33	36
34	39
35	43
36	49
37	54
38	59
39	65
40	15
41	18
42	20
43	23
44	26
45	28
46	31
47	34
48	36
49	39
50	41
51	44
52	47
53	49
54	52
55	54
56	59
57	65
58	69
59	75
60	81
61	85
62	91
63	95
64	101
65	107
66	111
67	117
68	123
69	127
70	39
71	41
72	44
73	47
74	49
75	52