A032689 - cp's OEIS frontend

A032689 Numbers k such that k surrounded by digit '7' is a lucky number.

n	a(n)
1	1
2	2
3	7
4	8
5	16
6	19
7	20
8	23
9	35
10	37
11	43
12	44
13	50
14	56
15	67
16	68
17	71
18	73
19	82
20	83
21	89
22	91
23	94
24	101
25	103
26	104
27	115
28	127
29	134
30	151
31	154
32	155
33	157
34	161
35	169
36	199
37	212
38	215
39	218
40	227
41	232
42	257
43	260
44	268
45	272
46	278
47	289
48	290
49	299
50	301
51	308
52	311
53	317
54	319
55	322
56	337
57	338

[1, 2, 7, 8, 16, 19, 20, 23, 35, 37, 43, 44, 50, 56, 67, 68, 71, 73, 82, 83, 89, 91, 94, 101, 103, 104, 115, 127, 134, 151, 154, 155, 157, 161, 169, 199, 212, 215, 218, 227, 232, 257, 260, 268, 272, 278, 289, 290, 299, 301, 308, 311, 317, 319, 322, 337, 338]

cp's OEIS Frontend

A032689 Numbers k such that k surrounded by digit '7' is a lucky number.

Table of values

List of values

n	a(n)
1	1
2	2
3	7
4	8
5	16
6	19
7	20
8	23
9	35
10	37
11	43
12	44
13	50
14	56
15	67
16	68
17	71
18	73
19	82
20	83
21	89
22	91
23	94
24	101
25	103
26	104
27	115
28	127
29	134
30	151
31	154
32	155
33	157
34	161
35	169
36	199
37	212
38	215
39	218
40	227
41	232
42	257
43	260
44	268
45	272
46	278
47	289
48	290
49	299
50	301
51	308
52	311
53	317
54	319
55	322
56	337
57	338

n	a(n)
1	1
2	2
3	7
4	8
5	16
6	19
7	20
8	23
9	35
10	37
11	43
12	44
13	50
14	56
15	67
16	68
17	71
18	73
19	82
20	83
21	89
22	91
23	94
24	101
25	103
26	104
27	115
28	127
29	134
30	151
31	154
32	155
33	157
34	161
35	169
36	199
37	212
38	215
39	218
40	227
41	232
42	257
43	260
44	268
45	272
46	278
47	289
48	290
49	299
50	301
51	308
52	311
53	317
54	319
55	322
56	337
57	338

n	a(n)
1	1
2	2
3	7
4	8
5	16
6	19
7	20
8	23
9	35
10	37
11	43
12	44
13	50
14	56
15	67
16	68
17	71
18	73
19	82
20	83
21	89
22	91
23	94
24	101
25	103
26	104
27	115
28	127
29	134
30	151
31	154
32	155
33	157
34	161
35	169
36	199
37	212
38	215
39	218
40	227
41	232
42	257
43	260
44	268
45	272
46	278
47	289
48	290
49	299
50	301
51	308
52	311
53	317
54	319
55	322
56	337
57	338