A368181 - cp's OEIS frontend

A368181 a(1) = 1; for n > 1, a(n) is the smallest positive integer that has not yet appeared which shares no digit with the sum of all previous terms a(1)..a(n-1).

n	a(n)
1	1
2	2
3	4
4	3
5	5
6	6
7	7
8	9
9	8
10	10
11	11
12	12
13	13
14	20
15	22
16	24
17	23
18	25
19	14
20	30
21	15
22	17
23	33
24	26
25	16
26	18
27	19
28	21
29	27
30	28
31	31
32	29
33	34
34	40
35	41
36	32
37	35
38	36
39	38
40	39
41	37
42	42
43	44
44	50
45	43
46	52
47	45
48	46
49	47
50	48
51	49
52	54
53	55
54	57
55	56
56	60
57	53
58	58
59	59
60	62
61	63
62	65
63	70
64	51
65	61
66	64
67	66
68	67
69	69
70	68
71	71
72	73
73	74
74	81
75	90
76	91
77	77

[1, 2, 4, 3, 5, 6, 7, 9, 8, 10, 11, 12, 13, 20, 22, 24, 23, 25, 14, 30, 15, 17, 33, 26, 16, 18, 19, 21, 27, 28, 31, 29, 34, 40, 41, 32, 35, 36, 38, 39, 37, 42, 44, 50, 43, 52, 45, 46, 47, 48, 49, 54, 55, 57, 56, 60, 53, 58, 59, 62, 63, 65, 70, 51, 61, 64, 66, 67, 69, 68, 71, 73, 74, 81, 90, 91, 77]

cp's OEIS Frontend

A368181 a(1) = 1; for n > 1, a(n) is the smallest positive integer that has not yet appeared which shares no digit with the sum of all previous terms a(1)..a(n-1).

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	3
5	5
6	6
7	7
8	9
9	8
10	10
11	11
12	12
13	13
14	20
15	22
16	24
17	23
18	25
19	14
20	30
21	15
22	17
23	33
24	26
25	16
26	18
27	19
28	21
29	27
30	28
31	31
32	29
33	34
34	40
35	41
36	32
37	35
38	36
39	38
40	39
41	37
42	42
43	44
44	50
45	43
46	52
47	45
48	46
49	47
50	48
51	49
52	54
53	55
54	57
55	56
56	60
57	53
58	58
59	59
60	62
61	63
62	65
63	70
64	51
65	61
66	64
67	66
68	67
69	69
70	68
71	71
72	73
73	74
74	81
75	90
76	91
77	77

n	a(n)
1	1
2	2
3	4
4	3
5	5
6	6
7	7
8	9
9	8
10	10
11	11
12	12
13	13
14	20
15	22
16	24
17	23
18	25
19	14
20	30
21	15
22	17
23	33
24	26
25	16
26	18
27	19
28	21
29	27
30	28
31	31
32	29
33	34
34	40
35	41
36	32
37	35
38	36
39	38
40	39
41	37
42	42
43	44
44	50
45	43
46	52
47	45
48	46
49	47
50	48
51	49
52	54
53	55
54	57
55	56
56	60
57	53
58	58
59	59
60	62
61	63
62	65
63	70
64	51
65	61
66	64
67	66
68	67
69	69
70	68
71	71
72	73
73	74
74	81
75	90
76	91
77	77

n	a(n)
1	1
2	2
3	4
4	3
5	5
6	6
7	7
8	9
9	8
10	10
11	11
12	12
13	13
14	20
15	22
16	24
17	23
18	25
19	14
20	30
21	15
22	17
23	33
24	26
25	16
26	18
27	19
28	21
29	27
30	28
31	31
32	29
33	34
34	40
35	41
36	32
37	35
38	36
39	38
40	39
41	37
42	42
43	44
44	50
45	43
46	52
47	45
48	46
49	47
50	48
51	49
52	54
53	55
54	57
55	56
56	60
57	53
58	58
59	59
60	62
61	63
62	65
63	70
64	51
65	61
66	64
67	66
68	67
69	69
70	68
71	71
72	73
73	74
74	81
75	90
76	91
77	77