A290466 - cp's OEIS frontend

A290466 Unitary Zumkeller numbers: numbers k whose unitary divisors can be partitioned into two disjoint subsets whose sums are both usigma(k)/2.

n	a(n)
1	6
2	30
3	42
4	60
5	66
6	70
7	78
8	90
9	102
10	114
11	138
12	150
13	174
14	186
15	210
16	222
17	246
18	258
19	282
20	294
21	318
22	330
23	354
24	366
25	390
26	402
27	420
28	426
29	438
30	462
31	474
32	498
33	510
34	534
35	546
36	570
37	582
38	606
39	618
40	630
41	642
42	654
43	660
44	678
45	690
46	714
47	726
48	750
49	762
50	770
51	780
52	786
53	798
54	822
55	834
56	840
57	858
58	870
59	894
60	906

[6, 30, 42, 60, 66, 70, 78, 90, 102, 114, 138, 150, 174, 186, 210, 222, 246, 258, 282, 294, 318, 330, 354, 366, 390, 402, 420, 426, 438, 462, 474, 498, 510, 534, 546, 570, 582, 606, 618, 630, 642, 654, 660, 678, 690, 714, 726, 750, 762, 770, 780, 786, 798, 822, 834, 840, 858, 870, 894, 906]

cp's OEIS Frontend

A290466 Unitary Zumkeller numbers: numbers k whose unitary divisors can be partitioned into two disjoint subsets whose sums are both usigma(k)/2.

Table of values

List of values

n	a(n)
1	6
2	30
3	42
4	60
5	66
6	70
7	78
8	90
9	102
10	114
11	138
12	150
13	174
14	186
15	210
16	222
17	246
18	258
19	282
20	294
21	318
22	330
23	354
24	366
25	390
26	402
27	420
28	426
29	438
30	462
31	474
32	498
33	510
34	534
35	546
36	570
37	582
38	606
39	618
40	630
41	642
42	654
43	660
44	678
45	690
46	714
47	726
48	750
49	762
50	770
51	780
52	786
53	798
54	822
55	834
56	840
57	858
58	870
59	894
60	906

n	a(n)
1	6
2	30
3	42
4	60
5	66
6	70
7	78
8	90
9	102
10	114
11	138
12	150
13	174
14	186
15	210
16	222
17	246
18	258
19	282
20	294
21	318
22	330
23	354
24	366
25	390
26	402
27	420
28	426
29	438
30	462
31	474
32	498
33	510
34	534
35	546
36	570
37	582
38	606
39	618
40	630
41	642
42	654
43	660
44	678
45	690
46	714
47	726
48	750
49	762
50	770
51	780
52	786
53	798
54	822
55	834
56	840
57	858
58	870
59	894
60	906

n	a(n)
1	6
2	30
3	42
4	60
5	66
6	70
7	78
8	90
9	102
10	114
11	138
12	150
13	174
14	186
15	210
16	222
17	246
18	258
19	282
20	294
21	318
22	330
23	354
24	366
25	390
26	402
27	420
28	426
29	438
30	462
31	474
32	498
33	510
34	534
35	546
36	570
37	582
38	606
39	618
40	630
41	642
42	654
43	660
44	678
45	690
46	714
47	726
48	750
49	762
50	770
51	780
52	786
53	798
54	822
55	834
56	840
57	858
58	870
59	894
60	906