A018870 - cp's OEIS frontend

A018870 9^a(n) is smallest power of 9 beginning with n.

n	a(n)
1	0
2	12
3	9
4	7
5	5
6	4
7	3
8	2
9	1
10	21
11	42
12	20
13	19
14	40
15	18
16	17
17	60
18	16
19	59
20	15
21	80
22	14
23	101
24	57
25	13
26	78
27	34
28	12
29	77
30	33
31	11
32	98
33	54
34	10
35	119
36	75
37	53
38	9
39	118
40	96
41	52
42	30
43	8
44	95
45	73
46	51
47	7
48	138
49	94
50	72
51	50
52	28
53	6
54	115
55	93
56	71
57	49
58	27
59	5
60	114
61	92
62	70
63	48
64	26
65	4
66	135
67	113
68	91
69	69
70	47
71	25
72	3
73	134

[0, 12, 9, 7, 5, 4, 3, 2, 1, 21, 42, 20, 19, 40, 18, 17, 60, 16, 59, 15, 80, 14, 101, 57, 13, 78, 34, 12, 77, 33, 11, 98, 54, 10, 119, 75, 53, 9, 118, 96, 52, 30, 8, 95, 73, 51, 7, 138, 94, 72, 50, 28, 6, 115, 93, 71, 49, 27, 5, 114, 92, 70, 48, 26, 4, 135, 113, 91, 69, 47, 25, 3, 134]

cp's OEIS Frontend

A018870 9^a(n) is smallest power of 9 beginning with n.

Table of values

List of values

n	a(n)
1	0
2	12
3	9
4	7
5	5
6	4
7	3
8	2
9	1
10	21
11	42
12	20
13	19
14	40
15	18
16	17
17	60
18	16
19	59
20	15
21	80
22	14
23	101
24	57
25	13
26	78
27	34
28	12
29	77
30	33
31	11
32	98
33	54
34	10
35	119
36	75
37	53
38	9
39	118
40	96
41	52
42	30
43	8
44	95
45	73
46	51
47	7
48	138
49	94
50	72
51	50
52	28
53	6
54	115
55	93
56	71
57	49
58	27
59	5
60	114
61	92
62	70
63	48
64	26
65	4
66	135
67	113
68	91
69	69
70	47
71	25
72	3
73	134

n	a(n)
1	0
2	12
3	9
4	7
5	5
6	4
7	3
8	2
9	1
10	21
11	42
12	20
13	19
14	40
15	18
16	17
17	60
18	16
19	59
20	15
21	80
22	14
23	101
24	57
25	13
26	78
27	34
28	12
29	77
30	33
31	11
32	98
33	54
34	10
35	119
36	75
37	53
38	9
39	118
40	96
41	52
42	30
43	8
44	95
45	73
46	51
47	7
48	138
49	94
50	72
51	50
52	28
53	6
54	115
55	93
56	71
57	49
58	27
59	5
60	114
61	92
62	70
63	48
64	26
65	4
66	135
67	113
68	91
69	69
70	47
71	25
72	3
73	134

n	a(n)
1	0
2	12
3	9
4	7
5	5
6	4
7	3
8	2
9	1
10	21
11	42
12	20
13	19
14	40
15	18
16	17
17	60
18	16
19	59
20	15
21	80
22	14
23	101
24	57
25	13
26	78
27	34
28	12
29	77
30	33
31	11
32	98
33	54
34	10
35	119
36	75
37	53
38	9
39	118
40	96
41	52
42	30
43	8
44	95
45	73
46	51
47	7
48	138
49	94
50	72
51	50
52	28
53	6
54	115
55	93
56	71
57	49
58	27
59	5
60	114
61	92
62	70
63	48
64	26
65	4
66	135
67	113
68	91
69	69
70	47
71	25
72	3
73	134