A383038 - cp's OEIS frontend

A383038 Positive integers which can be expressed in the form b^r - b^s where b, r, and s are positive integers.

n	a(n)
1	2
2	4
3	6
4	8
5	12
6	14
7	16
8	18
9	20
10	24
11	28
12	30
13	32
14	42
15	48
16	54
17	56
18	60
19	62
20	64
21	72
22	78
23	90
24	96
25	100
26	110
27	112
28	120
29	124
30	126
31	128
32	132
33	156
34	162
35	180
36	182
37	192
38	210
39	216
40	224
41	234
42	240
43	248
44	252
45	254
46	256
47	272
48	294
49	306
50	336
51	342
52	380
53	384
54	420
55	448
56	462
57	480
58	486
59	496
60	500

[2, 4, 6, 8, 12, 14, 16, 18, 20, 24, 28, 30, 32, 42, 48, 54, 56, 60, 62, 64, 72, 78, 90, 96, 100, 110, 112, 120, 124, 126, 128, 132, 156, 162, 180, 182, 192, 210, 216, 224, 234, 240, 248, 252, 254, 256, 272, 294, 306, 336, 342, 380, 384, 420, 448, 462, 480, 486, 496, 500]

cp's OEIS Frontend

A383038 Positive integers which can be expressed in the form b^r - b^s where b, r, and s are positive integers.

Table of values

List of values

n	a(n)
1	2
2	4
3	6
4	8
5	12
6	14
7	16
8	18
9	20
10	24
11	28
12	30
13	32
14	42
15	48
16	54
17	56
18	60
19	62
20	64
21	72
22	78
23	90
24	96
25	100
26	110
27	112
28	120
29	124
30	126
31	128
32	132
33	156
34	162
35	180
36	182
37	192
38	210
39	216
40	224
41	234
42	240
43	248
44	252
45	254
46	256
47	272
48	294
49	306
50	336
51	342
52	380
53	384
54	420
55	448
56	462
57	480
58	486
59	496
60	500

n	a(n)
1	2
2	4
3	6
4	8
5	12
6	14
7	16
8	18
9	20
10	24
11	28
12	30
13	32
14	42
15	48
16	54
17	56
18	60
19	62
20	64
21	72
22	78
23	90
24	96
25	100
26	110
27	112
28	120
29	124
30	126
31	128
32	132
33	156
34	162
35	180
36	182
37	192
38	210
39	216
40	224
41	234
42	240
43	248
44	252
45	254
46	256
47	272
48	294
49	306
50	336
51	342
52	380
53	384
54	420
55	448
56	462
57	480
58	486
59	496
60	500

n	a(n)
1	2
2	4
3	6
4	8
5	12
6	14
7	16
8	18
9	20
10	24
11	28
12	30
13	32
14	42
15	48
16	54
17	56
18	60
19	62
20	64
21	72
22	78
23	90
24	96
25	100
26	110
27	112
28	120
29	124
30	126
31	128
32	132
33	156
34	162
35	180
36	182
37	192
38	210
39	216
40	224
41	234
42	240
43	248
44	252
45	254
46	256
47	272
48	294
49	306
50	336
51	342
52	380
53	384
54	420
55	448
56	462
57	480
58	486
59	496
60	500