A241158 - cp's OEIS frontend

A241158 Numbers in which the two leading (most significant) digits are distinct.

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	20
21	21
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	32
32	34
33	35
34	36
35	37
36	38
37	39
38	40
39	41
40	42
41	43
42	45
43	46
44	47
45	48
46	49
47	50
48	51
49	52
50	53
51	54
52	56
53	57
54	58
55	59
56	60
57	61
58	62
59	63
60	64
61	65
62	67
63	68
64	69
65	70
66	71
67	72
68	73
69	74
70	75
71	76
72	78
73	79
74	80
75	81
76	82
77	83
78	84
79	85
80	86
81	87
82	89
83	90
84	91
85	92
86	93
87	94
88	95
89	96
90	97
91	98
92	100
93	101
94	102
95	103
96	104
97	105
98	106
99	107
100	108
101	109
102	120

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 120]

cp's OEIS Frontend

A241158 Numbers in which the two leading (most significant) digits are distinct.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	20
21	21
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	32
32	34
33	35
34	36
35	37
36	38
37	39
38	40
39	41
40	42
41	43
42	45
43	46
44	47
45	48
46	49
47	50
48	51
49	52
50	53
51	54
52	56
53	57
54	58
55	59
56	60
57	61
58	62
59	63
60	64
61	65
62	67
63	68
64	69
65	70
66	71
67	72
68	73
69	74
70	75
71	76
72	78
73	79
74	80
75	81
76	82
77	83
78	84
79	85
80	86
81	87
82	89
83	90
84	91
85	92
86	93
87	94
88	95
89	96
90	97
91	98
92	100
93	101
94	102
95	103
96	104
97	105
98	106
99	107
100	108
101	109
102	120

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	20
21	21
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	32
32	34
33	35
34	36
35	37
36	38
37	39
38	40
39	41
40	42
41	43
42	45
43	46
44	47
45	48
46	49
47	50
48	51
49	52
50	53
51	54
52	56
53	57
54	58
55	59
56	60
57	61
58	62
59	63
60	64
61	65
62	67
63	68
64	69
65	70
66	71
67	72
68	73
69	74
70	75
71	76
72	78
73	79
74	80
75	81
76	82
77	83
78	84
79	85
80	86
81	87
82	89
83	90
84	91
85	92
86	93
87	94
88	95
89	96
90	97
91	98
92	100
93	101
94	102
95	103
96	104
97	105
98	106
99	107
100	108
101	109
102	120

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	20
21	21
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	32
32	34
33	35
34	36
35	37
36	38
37	39
38	40
39	41
40	42
41	43
42	45
43	46
44	47
45	48
46	49
47	50
48	51
49	52
50	53
51	54
52	56
53	57
54	58
55	59
56	60
57	61
58	62
59	63
60	64
61	65
62	67
63	68
64	69
65	70
66	71
67	72
68	73
69	74
70	75
71	76
72	78
73	79
74	80
75	81
76	82
77	83
78	84
79	85
80	86
81	87
82	89
83	90
84	91
85	92
86	93
87	94
88	95
89	96
90	97
91	98
92	100
93	101
94	102
95	103
96	104
97	105
98	106
99	107
100	108
101	109
102	120