A381967 - cp's OEIS frontend

A381967 Lexicographically earliest sequence of distinct nonnegative integers such that for any n >= 0, the factorial base expansion of n*a(n) only contains distinct nonzero digits.

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

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

cp's OEIS Frontend

A381967 Lexicographically earliest sequence of distinct nonnegative integers such that for any n >= 0, the factorial base expansion of n*a(n) only contains distinct nonzero digits.

Table of values

List of values

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

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

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