A286652 - cp's OEIS frontend

A286652 Unitary practical numbers: numbers n such that every 1 <= k <= usigma(n) is a sum of distinct unitary divisors of n.

n	a(n)
1	1
2	2
3	6
4	30
5	42
6	66
7	78
8	210
9	330
10	390
11	462
12	510
13	546
14	570
15	690
16	714
17	798
18	858
19	870
20	930
21	966
22	1050
23	1110
24	1122
25	1218
26	1230
27	1254
28	1290
29	1302
30	1326
31	1410
32	1470
33	1482
34	1518
35	1554
36	1590
37	1650
38	1722
39	1770
40	1794
41	1806
42	1830
43	1914
44	1950
45	1974
46	2010
47	2046
48	2130

[1, 2, 6, 30, 42, 66, 78, 210, 330, 390, 462, 510, 546, 570, 690, 714, 798, 858, 870, 930, 966, 1050, 1110, 1122, 1218, 1230, 1254, 1290, 1302, 1326, 1410, 1470, 1482, 1518, 1554, 1590, 1650, 1722, 1770, 1794, 1806, 1830, 1914, 1950, 1974, 2010, 2046, 2130]

cp's OEIS Frontend

A286652 Unitary practical numbers: numbers n such that every 1 <= k <= usigma(n) is a sum of distinct unitary divisors of n.

Table of values

List of values