A093617 - cp's OEIS frontend

A093617 Numbers m such that there exists a number k less than m with k*m and m^2 having an equal number of divisors.

n	a(n)
1	18
2	50
3	75
4	90
5	98
6	108
7	126
8	144
9	147
10	150
11	198
12	234
13	242
14	245
15	294
16	300
17	306
18	324
19	338
20	342
21	350
22	363
23	384
24	400
25	414
26	450
27	490
28	500
29	507
30	522
31	525
32	540
33	550
34	558
35	578
36	588
37	600
38	605
39	630
40	640
41	648
42	650
43	666
44	720
45	722
46	726
47	735
48	738
49	756
50	774
51	784
52	825

[18, 50, 75, 90, 98, 108, 126, 144, 147, 150, 198, 234, 242, 245, 294, 300, 306, 324, 338, 342, 350, 363, 384, 400, 414, 450, 490, 500, 507, 522, 525, 540, 550, 558, 578, 588, 600, 605, 630, 640, 648, 650, 666, 720, 722, 726, 735, 738, 756, 774, 784, 825]

cp's OEIS Frontend

A093617 Numbers m such that there exists a number k less than m with k*m and m^2 having an equal number of divisors.

Table of values

List of values

n	a(n)
1	18
2	50
3	75
4	90
5	98
6	108
7	126
8	144
9	147
10	150
11	198
12	234
13	242
14	245
15	294
16	300
17	306
18	324
19	338
20	342
21	350
22	363
23	384
24	400
25	414
26	450
27	490
28	500
29	507
30	522
31	525
32	540
33	550
34	558
35	578
36	588
37	600
38	605
39	630
40	640
41	648
42	650
43	666
44	720
45	722
46	726
47	735
48	738
49	756
50	774
51	784
52	825

n	a(n)
1	18
2	50
3	75
4	90
5	98
6	108
7	126
8	144
9	147
10	150
11	198
12	234
13	242
14	245
15	294
16	300
17	306
18	324
19	338
20	342
21	350
22	363
23	384
24	400
25	414
26	450
27	490
28	500
29	507
30	522
31	525
32	540
33	550
34	558
35	578
36	588
37	600
38	605
39	630
40	640
41	648
42	650
43	666
44	720
45	722
46	726
47	735
48	738
49	756
50	774
51	784
52	825

n	a(n)
1	18
2	50
3	75
4	90
5	98
6	108
7	126
8	144
9	147
10	150
11	198
12	234
13	242
14	245
15	294
16	300
17	306
18	324
19	338
20	342
21	350
22	363
23	384
24	400
25	414
26	450
27	490
28	500
29	507
30	522
31	525
32	540
33	550
34	558
35	578
36	588
37	600
38	605
39	630
40	640
41	648
42	650
43	666
44	720
45	722
46	726
47	735
48	738
49	756
50	774
51	784
52	825