A106007 - cp's OEIS frontend

A106007 Coster numbers: similar to Friedman numbers (A036057), but here the operations + - * / are allowed. All digits of a number have to be used exactly twice.

n	a(n)
0	0
1	1
2	13
3	14
4	15
5	18
6	19
7	24
8	25
9	26
10	28
11	29
12	35
13	36
14	37
15	39
16	45
17	46
18	48
19	49
20	52
21	55
22	59
23	64
24	65
25	66
26	69
27	73
28	75
29	78
30	79
31	81
32	82
33	85
34	89
35	91
36	95
37	99
38	125
39	126
40	127
41	128
42	129
43	134
44	135
45	136
46	137
47	138
48	143
49	144
50	145
51	146
52	147
53	148
54	149
55	152
56	153
57	154
58	155
59	156
60	157
61	158

[0, 1, 13, 14, 15, 18, 19, 24, 25, 26, 28, 29, 35, 36, 37, 39, 45, 46, 48, 49, 52, 55, 59, 64, 65, 66, 69, 73, 75, 78, 79, 81, 82, 85, 89, 91, 95, 99, 125, 126, 127, 128, 129, 134, 135, 136, 137, 138, 143, 144, 145, 146, 147, 148, 149, 152, 153, 154, 155, 156, 157, 158]

cp's OEIS Frontend

A106007 Coster numbers: similar to Friedman numbers (A036057), but here the operations + - * / are allowed. All digits of a number have to be used exactly twice.

Table of values

List of values

n	a(n)
0	0
1	1
2	13
3	14
4	15
5	18
6	19
7	24
8	25
9	26
10	28
11	29
12	35
13	36
14	37
15	39
16	45
17	46
18	48
19	49
20	52
21	55
22	59
23	64
24	65
25	66
26	69
27	73
28	75
29	78
30	79
31	81
32	82
33	85
34	89
35	91
36	95
37	99
38	125
39	126
40	127
41	128
42	129
43	134
44	135
45	136
46	137
47	138
48	143
49	144
50	145
51	146
52	147
53	148
54	149
55	152
56	153
57	154
58	155
59	156
60	157
61	158

n	a(n)
0	0
1	1
2	13
3	14
4	15
5	18
6	19
7	24
8	25
9	26
10	28
11	29
12	35
13	36
14	37
15	39
16	45
17	46
18	48
19	49
20	52
21	55
22	59
23	64
24	65
25	66
26	69
27	73
28	75
29	78
30	79
31	81
32	82
33	85
34	89
35	91
36	95
37	99
38	125
39	126
40	127
41	128
42	129
43	134
44	135
45	136
46	137
47	138
48	143
49	144
50	145
51	146
52	147
53	148
54	149
55	152
56	153
57	154
58	155
59	156
60	157
61	158

n	a(n)
0	0
1	1
2	13
3	14
4	15
5	18
6	19
7	24
8	25
9	26
10	28
11	29
12	35
13	36
14	37
15	39
16	45
17	46
18	48
19	49
20	52
21	55
22	59
23	64
24	65
25	66
26	69
27	73
28	75
29	78
30	79
31	81
32	82
33	85
34	89
35	91
36	95
37	99
38	125
39	126
40	127
41	128
42	129
43	134
44	135
45	136
46	137
47	138
48	143
49	144
50	145
51	146
52	147
53	148
54	149
55	152
56	153
57	154
58	155
59	156
60	157
61	158