A046791 - cp's OEIS frontend

A046791 A046790 has several definitions, one of which is: "Numbers i such that there is a smaller positive number j such that (i+j)/2 and sqrt(i*j) are integers". The present sequence gives the smallest choice for j.

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

[2, 1, 4, 2, 6, 1, 3, 2, 4, 10, 5, 12, 1, 2, 6, 14, 7, 4, 2, 3, 20, 1, 22, 10, 6, 2, 11, 4, 26, 12, 28, 13, 30, 1, 5, 14, 2, 15, 34, 4, 3, 6, 38, 17, 10, 2, 42, 1, 19, 7, 44, 20, 46, 21, 12, 4, 22, 2, 23, 52, 6, 14, 1, 58, 26, 60, 2, 3, 5, 62, 10, 28, 4, 29, 66, 30, 68, 11, 31, 70, 2, 1, 6, 74, 33]

cp's OEIS Frontend

A046791 A046790 has several definitions, one of which is: "Numbers i such that there is a smaller positive number j such that (i+j)/2 and sqrt(i*j) are integers". The present sequence gives the smallest choice for j.

Table of values

List of values

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

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

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