A228061 - cp's OEIS frontend

A228061 Numbers k such that k^2 = sigma(m) for some m.

n	a(n)
1	1
2	2
3	6
4	11
5	12
6	16
7	18
8	20
9	24
10	28
11	30
12	31
13	32
14	36
15	40
16	42
17	44
18	48
19	52
20	54
21	56
22	60
23	62
24	64
25	66
26	68
27	70
28	72
29	76
30	78
31	80
32	84
33	88
34	90
35	96
36	98
37	100
38	102
39	104
40	108
41	112
42	114
43	120
44	124
45	126
46	128
47	132
48	136
49	140
50	144
51	150
52	152
53	154
54	156
55	160
56	162
57	164
58	168
59	172
60	174

[1, 2, 6, 11, 12, 16, 18, 20, 24, 28, 30, 31, 32, 36, 40, 42, 44, 48, 52, 54, 56, 60, 62, 64, 66, 68, 70, 72, 76, 78, 80, 84, 88, 90, 96, 98, 100, 102, 104, 108, 112, 114, 120, 124, 126, 128, 132, 136, 140, 144, 150, 152, 154, 156, 160, 162, 164, 168, 172, 174]

cp's OEIS Frontend

A228061 Numbers k such that k^2 = sigma(m) for some m.

Table of values

List of values

n	a(n)
1	1
2	2
3	6
4	11
5	12
6	16
7	18
8	20
9	24
10	28
11	30
12	31
13	32
14	36
15	40
16	42
17	44
18	48
19	52
20	54
21	56
22	60
23	62
24	64
25	66
26	68
27	70
28	72
29	76
30	78
31	80
32	84
33	88
34	90
35	96
36	98
37	100
38	102
39	104
40	108
41	112
42	114
43	120
44	124
45	126
46	128
47	132
48	136
49	140
50	144
51	150
52	152
53	154
54	156
55	160
56	162
57	164
58	168
59	172
60	174

n	a(n)
1	1
2	2
3	6
4	11
5	12
6	16
7	18
8	20
9	24
10	28
11	30
12	31
13	32
14	36
15	40
16	42
17	44
18	48
19	52
20	54
21	56
22	60
23	62
24	64
25	66
26	68
27	70
28	72
29	76
30	78
31	80
32	84
33	88
34	90
35	96
36	98
37	100
38	102
39	104
40	108
41	112
42	114
43	120
44	124
45	126
46	128
47	132
48	136
49	140
50	144
51	150
52	152
53	154
54	156
55	160
56	162
57	164
58	168
59	172
60	174

n	a(n)
1	1
2	2
3	6
4	11
5	12
6	16
7	18
8	20
9	24
10	28
11	30
12	31
13	32
14	36
15	40
16	42
17	44
18	48
19	52
20	54
21	56
22	60
23	62
24	64
25	66
26	68
27	70
28	72
29	76
30	78
31	80
32	84
33	88
34	90
35	96
36	98
37	100
38	102
39	104
40	108
41	112
42	114
43	120
44	124
45	126
46	128
47	132
48	136
49	140
50	144
51	150
52	152
53	154
54	156
55	160
56	162
57	164
58	168
59	172
60	174