A348093 - cp's OEIS frontend

A348093 Numbers k >= 1 such that there is no pair (x,y) such that x - d(x) = k or y + d(y) = k, where d = A000005 = number of divisors.

n	a(n)
1	8
2	20
3	36
4	40
5	67
6	68
7	79
8	88
9	100
10	116
11	117
12	131
13	132
14	134
15	140
16	156
17	164
18	167
19	180
20	185
21	196
22	204
23	228
24	244
25	252
26	268
27	276
28	284
29	300
30	308
31	312
32	321
33	324
34	341
35	348
36	370
37	372
38	379
39	388
40	401
41	405
42	408
43	420
44	425
45	436
46	439
47	453
48	460
49	476
50	479

[8, 20, 36, 40, 67, 68, 79, 88, 100, 116, 117, 131, 132, 134, 140, 156, 164, 167, 180, 185, 196, 204, 228, 244, 252, 268, 276, 284, 300, 308, 312, 321, 324, 341, 348, 370, 372, 379, 388, 401, 405, 408, 420, 425, 436, 439, 453, 460, 476, 479]

cp's OEIS Frontend

A348093 Numbers k >= 1 such that there is no pair (x,y) such that x - d(x) = k or y + d(y) = k, where d = A000005 = number of divisors.

Table of values

List of values

n	a(n)
1	8
2	20
3	36
4	40
5	67
6	68
7	79
8	88
9	100
10	116
11	117
12	131
13	132
14	134
15	140
16	156
17	164
18	167
19	180
20	185
21	196
22	204
23	228
24	244
25	252
26	268
27	276
28	284
29	300
30	308
31	312
32	321
33	324
34	341
35	348
36	370
37	372
38	379
39	388
40	401
41	405
42	408
43	420
44	425
45	436
46	439
47	453
48	460
49	476
50	479

n	a(n)
1	8
2	20
3	36
4	40
5	67
6	68
7	79
8	88
9	100
10	116
11	117
12	131
13	132
14	134
15	140
16	156
17	164
18	167
19	180
20	185
21	196
22	204
23	228
24	244
25	252
26	268
27	276
28	284
29	300
30	308
31	312
32	321
33	324
34	341
35	348
36	370
37	372
38	379
39	388
40	401
41	405
42	408
43	420
44	425
45	436
46	439
47	453
48	460
49	476
50	479

n	a(n)
1	8
2	20
3	36
4	40
5	67
6	68
7	79
8	88
9	100
10	116
11	117
12	131
13	132
14	134
15	140
16	156
17	164
18	167
19	180
20	185
21	196
22	204
23	228
24	244
25	252
26	268
27	276
28	284
29	300
30	308
31	312
32	321
33	324
34	341
35	348
36	370
37	372
38	379
39	388
40	401
41	405
42	408
43	420
44	425
45	436
46	439
47	453
48	460
49	476
50	479