A355608 - cp's OEIS frontend

A355608 Zeroless numbers k such that x^2 - s*x + p has only integer roots, where s and p denote the sum and product of the digits of k respectively.

n	a(n)
1	4
2	11
3	12
4	13
5	14
6	15
7	16
8	17
9	18
10	19
11	21
12	22
13	23
14	24
15	25
16	26
17	27
18	28
19	29
20	31
21	32
22	33
23	34
24	35
25	36
26	37
27	38
28	39
29	41
30	42
31	43
32	44
33	45
34	46
35	47
36	48
37	49
38	51
39	52
40	53
41	54
42	55
43	56
44	57
45	58
46	59
47	61
48	62
49	63
50	64
51	65
52	66
53	67
54	68
55	69
56	71
57	72
58	73
59	74
60	75
61	76
62	77
63	78
64	79
65	81
66	82
67	83
68	84
69	85
70	86
71	87
72	88
73	89
74	91
75	92
76	93
77	94
78	95
79	96
80	97
81	98
82	99
83	122
84	134
85	143
86	146

[4, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61, 62, 63, 64, 65, 66, 67, 68, 69, 71, 72, 73, 74, 75, 76, 77, 78, 79, 81, 82, 83, 84, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95, 96, 97, 98, 99, 122, 134, 143, 146]

cp's OEIS Frontend

A355608 Zeroless numbers k such that x^2 - s*x + p has only integer roots, where s and p denote the sum and product of the digits of k respectively.

Table of values

List of values

n	a(n)
1	4
2	11
3	12
4	13
5	14
6	15
7	16
8	17
9	18
10	19
11	21
12	22
13	23
14	24
15	25
16	26
17	27
18	28
19	29
20	31
21	32
22	33
23	34
24	35
25	36
26	37
27	38
28	39
29	41
30	42
31	43
32	44
33	45
34	46
35	47
36	48
37	49
38	51
39	52
40	53
41	54
42	55
43	56
44	57
45	58
46	59
47	61
48	62
49	63
50	64
51	65
52	66
53	67
54	68
55	69
56	71
57	72
58	73
59	74
60	75
61	76
62	77
63	78
64	79
65	81
66	82
67	83
68	84
69	85
70	86
71	87
72	88
73	89
74	91
75	92
76	93
77	94
78	95
79	96
80	97
81	98
82	99
83	122
84	134
85	143
86	146

n	a(n)
1	4
2	11
3	12
4	13
5	14
6	15
7	16
8	17
9	18
10	19
11	21
12	22
13	23
14	24
15	25
16	26
17	27
18	28
19	29
20	31
21	32
22	33
23	34
24	35
25	36
26	37
27	38
28	39
29	41
30	42
31	43
32	44
33	45
34	46
35	47
36	48
37	49
38	51
39	52
40	53
41	54
42	55
43	56
44	57
45	58
46	59
47	61
48	62
49	63
50	64
51	65
52	66
53	67
54	68
55	69
56	71
57	72
58	73
59	74
60	75
61	76
62	77
63	78
64	79
65	81
66	82
67	83
68	84
69	85
70	86
71	87
72	88
73	89
74	91
75	92
76	93
77	94
78	95
79	96
80	97
81	98
82	99
83	122
84	134
85	143
86	146

n	a(n)
1	4
2	11
3	12
4	13
5	14
6	15
7	16
8	17
9	18
10	19
11	21
12	22
13	23
14	24
15	25
16	26
17	27
18	28
19	29
20	31
21	32
22	33
23	34
24	35
25	36
26	37
27	38
28	39
29	41
30	42
31	43
32	44
33	45
34	46
35	47
36	48
37	49
38	51
39	52
40	53
41	54
42	55
43	56
44	57
45	58
46	59
47	61
48	62
49	63
50	64
51	65
52	66
53	67
54	68
55	69
56	71
57	72
58	73
59	74
60	75
61	76
62	77
63	78
64	79
65	81
66	82
67	83
68	84
69	85
70	86
71	87
72	88
73	89
74	91
75	92
76	93
77	94
78	95
79	96
80	97
81	98
82	99
83	122
84	134
85	143
86	146