A105831 - cp's OEIS frontend

A105831 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)=6.

n	a(n)
1	1
2	6
3	7
4	3
5	4
6	15
7	19
8	8
9	11
10	10
11	21
12	13
13	18
14	16
15	2
16	5
17	12
18	9
19	30
20	24
21	54
22	33
23	17
24	26
25	43
26	28
27	71
28	39
29	32
30	55
31	87
32	46
33	25
34	66
35	27
36	93
37	22
38	56
39	78
40	23
41	31
42	114
43	40
44	74
45	36
46	38
47	68
48	106
49	60
50	166
51	42
52	124
53	110
54	14
55	48
56	62
57	85
58	58
59	143
60	86
61	57
62	29
63	140
64	169
65	51
66	118
67	45
68	52
69	76
70	128

[1, 6, 7, 3, 4, 15, 19, 8, 11, 10, 21, 13, 18, 16, 2, 5, 12, 9, 30, 24, 54, 33, 17, 26, 43, 28, 71, 39, 32, 55, 87, 46, 25, 66, 27, 93, 22, 56, 78, 23, 31, 114, 40, 74, 36, 38, 68, 106, 60, 166, 42, 124, 110, 14, 48, 62, 85, 58, 143, 86, 57, 29, 140, 169, 51, 118, 45, 52, 76, 128]

cp's OEIS Frontend

A105831 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)=6.

Table of values

List of values

n	a(n)
1	1
2	6
3	7
4	3
5	4
6	15
7	19
8	8
9	11
10	10
11	21
12	13
13	18
14	16
15	2
16	5
17	12
18	9
19	30
20	24
21	54
22	33
23	17
24	26
25	43
26	28
27	71
28	39
29	32
30	55
31	87
32	46
33	25
34	66
35	27
36	93
37	22
38	56
39	78
40	23
41	31
42	114
43	40
44	74
45	36
46	38
47	68
48	106
49	60
50	166
51	42
52	124
53	110
54	14
55	48
56	62
57	85
58	58
59	143
60	86
61	57
62	29
63	140
64	169
65	51
66	118
67	45
68	52
69	76
70	128

n	a(n)
1	1
2	6
3	7
4	3
5	4
6	15
7	19
8	8
9	11
10	10
11	21
12	13
13	18
14	16
15	2
16	5
17	12
18	9
19	30
20	24
21	54
22	33
23	17
24	26
25	43
26	28
27	71
28	39
29	32
30	55
31	87
32	46
33	25
34	66
35	27
36	93
37	22
38	56
39	78
40	23
41	31
42	114
43	40
44	74
45	36
46	38
47	68
48	106
49	60
50	166
51	42
52	124
53	110
54	14
55	48
56	62
57	85
58	58
59	143
60	86
61	57
62	29
63	140
64	169
65	51
66	118
67	45
68	52
69	76
70	128

cp's OEIS Frontend

A105831 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)=6.

Table of values

List of values

A105831 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)=6.

n	a(n)
1	1
2	6
3	7
4	3
5	4
6	15
7	19
8	8
9	11
10	10
11	21
12	13
13	18
14	16
15	2
16	5
17	12
18	9
19	30
20	24
21	54
22	33
23	17
24	26
25	43
26	28
27	71
28	39
29	32
30	55
31	87
32	46
33	25
34	66
35	27
36	93
37	22
38	56
39	78
40	23
41	31
42	114
43	40
44	74
45	36
46	38
47	68
48	106
49	60
50	166
51	42
52	124
53	110
54	14
55	48
56	62
57	85
58	58
59	143
60	86
61	57
62	29
63	140
64	169
65	51
66	118
67	45
68	52
69	76
70	128