A207460 - cp's OEIS frontend

A207460 Let a(1) = 4. For n > 1, a(n) is the least number greater than a(n-1) such that the Hamming distance D(a(n-1),a(n)) = 4.

n	a(n)
1	4
2	11
3	16
4	31
5	35
6	44
7	49
8	62
9	70
10	73
11	82
12	93
13	97
14	110
15	112
16	127
17	143
18	145
19	158
20	162
21	173
22	176
23	191
24	199
25	200
26	211
27	220
28	224
29	239
30	241
31	254
32	286
33	290
34	301
35	304
36	319
37	327
38	328
39	339
40	348
41	352
42	367
43	369
44	382
45	398
46	400
47	415
48	419

[4, 11, 16, 31, 35, 44, 49, 62, 70, 73, 82, 93, 97, 110, 112, 127, 143, 145, 158, 162, 173, 176, 191, 199, 200, 211, 220, 224, 239, 241, 254, 286, 290, 301, 304, 319, 327, 328, 339, 348, 352, 367, 369, 382, 398, 400, 415, 419]

cp's OEIS Frontend

A207460 Let a(1) = 4. For n > 1, a(n) is the least number greater than a(n-1) such that the Hamming distance D(a(n-1),a(n)) = 4.

Table of values

List of values

n	a(n)
1	4
2	11
3	16
4	31
5	35
6	44
7	49
8	62
9	70
10	73
11	82
12	93
13	97
14	110
15	112
16	127
17	143
18	145
19	158
20	162
21	173
22	176
23	191
24	199
25	200
26	211
27	220
28	224
29	239
30	241
31	254
32	286
33	290
34	301
35	304
36	319
37	327
38	328
39	339
40	348
41	352
42	367
43	369
44	382
45	398
46	400
47	415
48	419

n	a(n)
1	4
2	11
3	16
4	31
5	35
6	44
7	49
8	62
9	70
10	73
11	82
12	93
13	97
14	110
15	112
16	127
17	143
18	145
19	158
20	162
21	173
22	176
23	191
24	199
25	200
26	211
27	220
28	224
29	239
30	241
31	254
32	286
33	290
34	301
35	304
36	319
37	327
38	328
39	339
40	348
41	352
42	367
43	369
44	382
45	398
46	400
47	415
48	419

n	a(n)
1	4
2	11
3	16
4	31
5	35
6	44
7	49
8	62
9	70
10	73
11	82
12	93
13	97
14	110
15	112
16	127
17	143
18	145
19	158
20	162
21	173
22	176
23	191
24	199
25	200
26	211
27	220
28	224
29	239
30	241
31	254
32	286
33	290
34	301
35	304
36	319
37	327
38	328
39	339
40	348
41	352
42	367
43	369
44	382
45	398
46	400
47	415
48	419