A299957 - cp's OEIS frontend

A299957 The sum a(n) + a(n+1) always has at least one digit "1". Lexicographically first such sequence of nonnegative integers without duplicate term.

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

[0, 1, 9, 2, 8, 3, 7, 4, 6, 5, 10, 11, 20, 21, 30, 31, 40, 41, 50, 51, 49, 12, 19, 22, 29, 32, 39, 42, 58, 13, 18, 23, 28, 33, 38, 43, 48, 52, 53, 47, 14, 17, 24, 27, 34, 37, 44, 56, 15, 16, 25, 26, 35, 36, 45, 46, 54, 55, 57, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80]

cp's OEIS Frontend

A299957 The sum a(n) + a(n+1) always has at least one digit "1". Lexicographically first such sequence of nonnegative integers without duplicate term.

Table of values

List of values

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

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

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