A105828 - cp's OEIS frontend

A105828 For n>2, a(n) not appeared previously is such that a(n-1)^2+4a(n-2)a(n) is a minimal square, a(1)=1, a(2)=3.

n	a(n)
1	1
2	3
3	4
4	7
5	2
6	5
7	12
8	9
9	21
10	8
11	13
12	6
13	19
14	11
15	30
16	41
17	15
18	26
19	24
20	50
21	14
22	36
23	18
24	10
25	28
26	38
27	66
28	20
29	16
30	48
31	45
32	93
33	72
34	165
35	63
36	102
37	96
38	198
39	105
40	23
41	62
42	85
43	58
44	27
45	31
46	46
47	32
48	78
49	47
50	43
51	90
52	117
53	22
54	95
55	53
56	42
57	128
58	40
59	25
60	65
61	68
62	124
63	79
64	129
65	208
66	100
67	108
68	184
69	64

[1, 3, 4, 7, 2, 5, 12, 9, 21, 8, 13, 6, 19, 11, 30, 41, 15, 26, 24, 50, 14, 36, 18, 10, 28, 38, 66, 20, 16, 48, 45, 93, 72, 165, 63, 102, 96, 198, 105, 23, 62, 85, 58, 27, 31, 46, 32, 78, 47, 43, 90, 117, 22, 95, 53, 42, 128, 40, 25, 65, 68, 124, 79, 129, 208, 100, 108, 184, 64]

cp's OEIS Frontend

A105828 For n>2, a(n) not appeared previously is such that a(n-1)^2+4a(n-2)a(n) is a minimal square, a(1)=1, a(2)=3.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	7
5	2
6	5
7	12
8	9
9	21
10	8
11	13
12	6
13	19
14	11
15	30
16	41
17	15
18	26
19	24
20	50
21	14
22	36
23	18
24	10
25	28
26	38
27	66
28	20
29	16
30	48
31	45
32	93
33	72
34	165
35	63
36	102
37	96
38	198
39	105
40	23
41	62
42	85
43	58
44	27
45	31
46	46
47	32
48	78
49	47
50	43
51	90
52	117
53	22
54	95
55	53
56	42
57	128
58	40
59	25
60	65
61	68
62	124
63	79
64	129
65	208
66	100
67	108
68	184
69	64

n	a(n)
1	1
2	3
3	4
4	7
5	2
6	5
7	12
8	9
9	21
10	8
11	13
12	6
13	19
14	11
15	30
16	41
17	15
18	26
19	24
20	50
21	14
22	36
23	18
24	10
25	28
26	38
27	66
28	20
29	16
30	48
31	45
32	93
33	72
34	165
35	63
36	102
37	96
38	198
39	105
40	23
41	62
42	85
43	58
44	27
45	31
46	46
47	32
48	78
49	47
50	43
51	90
52	117
53	22
54	95
55	53
56	42
57	128
58	40
59	25
60	65
61	68
62	124
63	79
64	129
65	208
66	100
67	108
68	184
69	64

cp's OEIS Frontend

A105828 For n>2, a(n) not appeared previously is such that a(n-1)^2+4*a(n-2)*a(n) is a minimal square, a(1)=1, a(2)=3.

Table of values

List of values

A105828 For n>2, a(n) not appeared previously is such that a(n-1)^2+4a(n-2)a(n) is a minimal square, a(1)=1, a(2)=3.

n	a(n)
1	1
2	3
3	4
4	7
5	2
6	5
7	12
8	9
9	21
10	8
11	13
12	6
13	19
14	11
15	30
16	41
17	15
18	26
19	24
20	50
21	14
22	36
23	18
24	10
25	28
26	38
27	66
28	20
29	16
30	48
31	45
32	93
33	72
34	165
35	63
36	102
37	96
38	198
39	105
40	23
41	62
42	85
43	58
44	27
45	31
46	46
47	32
48	78
49	47
50	43
51	90
52	117
53	22
54	95
55	53
56	42
57	128
58	40
59	25
60	65
61	68
62	124
63	79
64	129
65	208
66	100
67	108
68	184
69	64