A355547 - cp's OEIS frontend

A355547 Numbers k such that x^2 - s*x + p has noninteger roots with s sum of digits of k and p product of digits of k.

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	9
9	111
10	112
11	113
12	114
13	115
14	116
15	117
16	118
17	119
18	121
19	123
20	124
21	125
22	126
23	127
24	128
25	129
26	131
27	132
28	133
29	135
30	136
31	137
32	138
33	139
34	141
35	142
36	144
37	145
38	147
39	148
40	149
41	151
42	152
43	153
44	154
45	155
46	156
47	157
48	159
49	161
50	162
51	163
52	165
53	167
54	168
55	169
56	171

[1, 2, 3, 5, 6, 7, 8, 9, 111, 112, 113, 114, 115, 116, 117, 118, 119, 121, 123, 124, 125, 126, 127, 128, 129, 131, 132, 133, 135, 136, 137, 138, 139, 141, 142, 144, 145, 147, 148, 149, 151, 152, 153, 154, 155, 156, 157, 159, 161, 162, 163, 165, 167, 168, 169, 171]

cp's OEIS Frontend

A355547 Numbers k such that x^2 - s*x + p has noninteger roots with s sum of digits of k and p product of digits of k.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	9
9	111
10	112
11	113
12	114
13	115
14	116
15	117
16	118
17	119
18	121
19	123
20	124
21	125
22	126
23	127
24	128
25	129
26	131
27	132
28	133
29	135
30	136
31	137
32	138
33	139
34	141
35	142
36	144
37	145
38	147
39	148
40	149
41	151
42	152
43	153
44	154
45	155
46	156
47	157
48	159
49	161
50	162
51	163
52	165
53	167
54	168
55	169
56	171

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	9
9	111
10	112
11	113
12	114
13	115
14	116
15	117
16	118
17	119
18	121
19	123
20	124
21	125
22	126
23	127
24	128
25	129
26	131
27	132
28	133
29	135
30	136
31	137
32	138
33	139
34	141
35	142
36	144
37	145
38	147
39	148
40	149
41	151
42	152
43	153
44	154
45	155
46	156
47	157
48	159
49	161
50	162
51	163
52	165
53	167
54	168
55	169
56	171

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	9
9	111
10	112
11	113
12	114
13	115
14	116
15	117
16	118
17	119
18	121
19	123
20	124
21	125
22	126
23	127
24	128
25	129
26	131
27	132
28	133
29	135
30	136
31	137
32	138
33	139
34	141
35	142
36	144
37	145
38	147
39	148
40	149
41	151
42	152
43	153
44	154
45	155
46	156
47	157
48	159
49	161
50	162
51	163
52	165
53	167
54	168
55	169
56	171