A283161 - cp's OEIS frontend

A283161 Natural numbers whose digits can be formed by typing non-adjacent keys on a 123-456-789 keypad without repeating a digit.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	13
11	15
12	16
13	17
14	18
15	19
16	24
17	26
18	27
19	28
20	29
21	31
22	34
23	35
24	37
25	38
26	39
27	42
28	43
29	46
30	48
31	49
32	51
33	53
34	57
35	59
36	61
37	62
38	64
39	67
40	68
41	71
42	72
43	73
44	75
45	76
46	79
47	81
48	82
49	83
50	84
51	86
52	91
53	92
54	93
55	94
56	95
57	97
58	135
59	137
60	138
61	139
62	153
63	157
64	159
65	167
66	168
67	173
68	175
69	176
70	179
71	183
72	186
73	193
74	195

[1, 2, 3, 4, 5, 6, 7, 8, 9, 13, 15, 16, 17, 18, 19, 24, 26, 27, 28, 29, 31, 34, 35, 37, 38, 39, 42, 43, 46, 48, 49, 51, 53, 57, 59, 61, 62, 64, 67, 68, 71, 72, 73, 75, 76, 79, 81, 82, 83, 84, 86, 91, 92, 93, 94, 95, 97, 135, 137, 138, 139, 153, 157, 159, 167, 168, 173, 175, 176, 179, 183, 186, 193, 195]

cp's OEIS Frontend

A283161 Natural numbers whose digits can be formed by typing non-adjacent keys on a 123-456-789 keypad without repeating a digit.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	13
11	15
12	16
13	17
14	18
15	19
16	24
17	26
18	27
19	28
20	29
21	31
22	34
23	35
24	37
25	38
26	39
27	42
28	43
29	46
30	48
31	49
32	51
33	53
34	57
35	59
36	61
37	62
38	64
39	67
40	68
41	71
42	72
43	73
44	75
45	76
46	79
47	81
48	82
49	83
50	84
51	86
52	91
53	92
54	93
55	94
56	95
57	97
58	135
59	137
60	138
61	139
62	153
63	157
64	159
65	167
66	168
67	173
68	175
69	176
70	179
71	183
72	186
73	193
74	195

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	13
11	15
12	16
13	17
14	18
15	19
16	24
17	26
18	27
19	28
20	29
21	31
22	34
23	35
24	37
25	38
26	39
27	42
28	43
29	46
30	48
31	49
32	51
33	53
34	57
35	59
36	61
37	62
38	64
39	67
40	68
41	71
42	72
43	73
44	75
45	76
46	79
47	81
48	82
49	83
50	84
51	86
52	91
53	92
54	93
55	94
56	95
57	97
58	135
59	137
60	138
61	139
62	153
63	157
64	159
65	167
66	168
67	173
68	175
69	176
70	179
71	183
72	186
73	193
74	195

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	13
11	15
12	16
13	17
14	18
15	19
16	24
17	26
18	27
19	28
20	29
21	31
22	34
23	35
24	37
25	38
26	39
27	42
28	43
29	46
30	48
31	49
32	51
33	53
34	57
35	59
36	61
37	62
38	64
39	67
40	68
41	71
42	72
43	73
44	75
45	76
46	79
47	81
48	82
49	83
50	84
51	86
52	91
53	92
54	93
55	94
56	95
57	97
58	135
59	137
60	138
61	139
62	153
63	157
64	159
65	167
66	168
67	173
68	175
69	176
70	179
71	183
72	186
73	193
74	195