A316291 - cp's OEIS frontend

A316291 Common denominators of all Egyptian fraction representations of unity (EFROUs) such that replacing two terms with their sum never results in another EFROU.

n	a(n)
1	6
2	20
3	28
4	30
5	40
6	48
7	60
8	66
9	72
10	80
11	84
12	88
13	90
14	96
15	104
16	120
17	126
18	132
19	140
20	144
21	150
22	156
23	160
24	168
25	176
26	180
27	192
28	196
29	198
30	200
31	204
32	208
33	210
34	216
35	220
36	224
37	228
38	234
39	240
40	252
41	260
42	264

[6, 20, 28, 30, 40, 48, 60, 66, 72, 80, 84, 88, 90, 96, 104, 120, 126, 132, 140, 144, 150, 156, 160, 168, 176, 180, 192, 196, 198, 200, 204, 208, 210, 216, 220, 224, 228, 234, 240, 252, 260, 264]

cp's OEIS Frontend

A316291 Common denominators of all Egyptian fraction representations of unity (EFROUs) such that replacing two terms with their sum never results in another EFROU.

Table of values

List of values

n	a(n)
1	6
2	20
3	28
4	30
5	40
6	48
7	60
8	66
9	72
10	80
11	84
12	88
13	90
14	96
15	104
16	120
17	126
18	132
19	140
20	144
21	150
22	156
23	160
24	168
25	176
26	180
27	192
28	196
29	198
30	200
31	204
32	208
33	210
34	216
35	220
36	224
37	228
38	234
39	240
40	252
41	260
42	264

n	a(n)
1	6
2	20
3	28
4	30
5	40
6	48
7	60
8	66
9	72
10	80
11	84
12	88
13	90
14	96
15	104
16	120
17	126
18	132
19	140
20	144
21	150
22	156
23	160
24	168
25	176
26	180
27	192
28	196
29	198
30	200
31	204
32	208
33	210
34	216
35	220
36	224
37	228
38	234
39	240
40	252
41	260
42	264

n	a(n)
1	6
2	20
3	28
4	30
5	40
6	48
7	60
8	66
9	72
10	80
11	84
12	88
13	90
14	96
15	104
16	120
17	126
18	132
19	140
20	144
21	150
22	156
23	160
24	168
25	176
26	180
27	192
28	196
29	198
30	200
31	204
32	208
33	210
34	216
35	220
36	224
37	228
38	234
39	240
40	252
41	260
42	264