A349759 - cp's OEIS frontend

A349759 Nobly deficient numbers: numbers k such that both d(k) = A000005(k) and sigma(k) = A000203(k) are deficient numbers (A005100).

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	8
7	9
8	13
9	16
10	21
11	25
12	31
13	36
14	37
15	43
16	48
17	49
18	61
19	64
20	67
21	73
22	81
23	93
24	97
25	100
26	109
27	111
28	112
29	121
30	127
31	128
32	144
33	151
34	157
35	162
36	163
37	169
38	181
39	183
40	192
41	193
42	196
43	208
44	211
45	217
46	219
47	225
48	229
49	241
50	256
51	277
52	283
53	289
54	313
55	324
56	331
57	337
58	361
59	373

[1, 2, 3, 4, 7, 8, 9, 13, 16, 21, 25, 31, 36, 37, 43, 48, 49, 61, 64, 67, 73, 81, 93, 97, 100, 109, 111, 112, 121, 127, 128, 144, 151, 157, 162, 163, 169, 181, 183, 192, 193, 196, 208, 211, 217, 219, 225, 229, 241, 256, 277, 283, 289, 313, 324, 331, 337, 361, 373]

cp's OEIS Frontend

A349759 Nobly deficient numbers: numbers k such that both d(k) = A000005(k) and sigma(k) = A000203(k) are deficient numbers (A005100).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	8
7	9
8	13
9	16
10	21
11	25
12	31
13	36
14	37
15	43
16	48
17	49
18	61
19	64
20	67
21	73
22	81
23	93
24	97
25	100
26	109
27	111
28	112
29	121
30	127
31	128
32	144
33	151
34	157
35	162
36	163
37	169
38	181
39	183
40	192
41	193
42	196
43	208
44	211
45	217
46	219
47	225
48	229
49	241
50	256
51	277
52	283
53	289
54	313
55	324
56	331
57	337
58	361
59	373

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	8
7	9
8	13
9	16
10	21
11	25
12	31
13	36
14	37
15	43
16	48
17	49
18	61
19	64
20	67
21	73
22	81
23	93
24	97
25	100
26	109
27	111
28	112
29	121
30	127
31	128
32	144
33	151
34	157
35	162
36	163
37	169
38	181
39	183
40	192
41	193
42	196
43	208
44	211
45	217
46	219
47	225
48	229
49	241
50	256
51	277
52	283
53	289
54	313
55	324
56	331
57	337
58	361
59	373

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	8
7	9
8	13
9	16
10	21
11	25
12	31
13	36
14	37
15	43
16	48
17	49
18	61
19	64
20	67
21	73
22	81
23	93
24	97
25	100
26	109
27	111
28	112
29	121
30	127
31	128
32	144
33	151
34	157
35	162
36	163
37	169
38	181
39	183
40	192
41	193
42	196
43	208
44	211
45	217
46	219
47	225
48	229
49	241
50	256
51	277
52	283
53	289
54	313
55	324
56	331
57	337
58	361
59	373