A299984 - cp's OEIS frontend

A299984 Lexicographic first sequence of nonnegative integers such that a(n) + a(n+1) has a digit 4, and no term occurs twice.

n	a(n)
0	0
1	4
2	10
3	14
4	20
5	21
6	3
7	1
8	13
9	11
10	23
11	17
12	7
13	27
14	15
15	9
16	5
17	19
18	22
19	2
20	12
21	28
22	6
23	8
24	16
25	18
26	24
27	25
28	29
29	35
30	39
31	45
32	49
33	55
34	59
35	65
36	69
37	71
38	33
39	31
40	43
41	41
42	53
43	51
44	63
45	61
46	73
47	67
48	37
49	47
50	57
51	77
52	64
53	30
54	34
55	40
56	44
57	50
58	54
59	60
60	74
61	66
62	38
63	26
64	48
65	36
66	58
67	46
68	68
69	56
70	78
71	62
72	32
73	42
74	52
75	72
76	70
77	75
78	79
79	85
80	89
81	95
82	99
83	105
84	109
85	115
86	119
87	121
88	83

[0, 4, 10, 14, 20, 21, 3, 1, 13, 11, 23, 17, 7, 27, 15, 9, 5, 19, 22, 2, 12, 28, 6, 8, 16, 18, 24, 25, 29, 35, 39, 45, 49, 55, 59, 65, 69, 71, 33, 31, 43, 41, 53, 51, 63, 61, 73, 67, 37, 47, 57, 77, 64, 30, 34, 40, 44, 50, 54, 60, 74, 66, 38, 26, 48, 36, 58, 46, 68, 56, 78, 62, 32, 42, 52, 72, 70, 75, 79, 85, 89, 95, 99, 105, 109, 115, 119, 121, 83]

cp's OEIS Frontend

A299984 Lexicographic first sequence of nonnegative integers such that a(n) + a(n+1) has a digit 4, and no term occurs twice.

Table of values

List of values

n	a(n)
0	0
1	4
2	10
3	14
4	20
5	21
6	3
7	1
8	13
9	11
10	23
11	17
12	7
13	27
14	15
15	9
16	5
17	19
18	22
19	2
20	12
21	28
22	6
23	8
24	16
25	18
26	24
27	25
28	29
29	35
30	39
31	45
32	49
33	55
34	59
35	65
36	69
37	71
38	33
39	31
40	43
41	41
42	53
43	51
44	63
45	61
46	73
47	67
48	37
49	47
50	57
51	77
52	64
53	30
54	34
55	40
56	44
57	50
58	54
59	60
60	74
61	66
62	38
63	26
64	48
65	36
66	58
67	46
68	68
69	56
70	78
71	62
72	32
73	42
74	52
75	72
76	70
77	75
78	79
79	85
80	89
81	95
82	99
83	105
84	109
85	115
86	119
87	121
88	83

n	a(n)
0	0
1	4
2	10
3	14
4	20
5	21
6	3
7	1
8	13
9	11
10	23
11	17
12	7
13	27
14	15
15	9
16	5
17	19
18	22
19	2
20	12
21	28
22	6
23	8
24	16
25	18
26	24
27	25
28	29
29	35
30	39
31	45
32	49
33	55
34	59
35	65
36	69
37	71
38	33
39	31
40	43
41	41
42	53
43	51
44	63
45	61
46	73
47	67
48	37
49	47
50	57
51	77
52	64
53	30
54	34
55	40
56	44
57	50
58	54
59	60
60	74
61	66
62	38
63	26
64	48
65	36
66	58
67	46
68	68
69	56
70	78
71	62
72	32
73	42
74	52
75	72
76	70
77	75
78	79
79	85
80	89
81	95
82	99
83	105
84	109
85	115
86	119
87	121
88	83

n	a(n)
0	0
1	4
2	10
3	14
4	20
5	21
6	3
7	1
8	13
9	11
10	23
11	17
12	7
13	27
14	15
15	9
16	5
17	19
18	22
19	2
20	12
21	28
22	6
23	8
24	16
25	18
26	24
27	25
28	29
29	35
30	39
31	45
32	49
33	55
34	59
35	65
36	69
37	71
38	33
39	31
40	43
41	41
42	53
43	51
44	63
45	61
46	73
47	67
48	37
49	47
50	57
51	77
52	64
53	30
54	34
55	40
56	44
57	50
58	54
59	60
60	74
61	66
62	38
63	26
64	48
65	36
66	58
67	46
68	68
69	56
70	78
71	62
72	32
73	42
74	52
75	72
76	70
77	75
78	79
79	85
80	89
81	95
82	99
83	105
84	109
85	115
86	119
87	121
88	83