A328781 - cp's OEIS frontend

A328781 Nonnegative integers k such that k and k^2 contain the same number of zero digits in their decimal expansion.

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	21
21	22
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	31
30	34
31	35
32	36
33	37
34	38
35	39
36	41
37	42
38	43
39	44
40	46
41	54
42	56
43	57
44	58
45	59
46	61
47	62
48	63
49	65
50	66
51	67
52	68
53	69
54	72
55	73
56	74
57	75
58	76
59	77
60	79
61	81
62	82
63	83
64	85
65	86
66	87
67	88
68	89
69	91
70	92
71	93
72	94
73	96
74	104
75	105

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 46, 54, 56, 57, 58, 59, 61, 62, 63, 65, 66, 67, 68, 69, 72, 73, 74, 75, 76, 77, 79, 81, 82, 83, 85, 86, 87, 88, 89, 91, 92, 93, 94, 96, 104, 105]

cp's OEIS Frontend

A328781 Nonnegative integers k such that k and k^2 contain the same number of zero digits in their decimal expansion.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	21
21	22
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	31
30	34
31	35
32	36
33	37
34	38
35	39
36	41
37	42
38	43
39	44
40	46
41	54
42	56
43	57
44	58
45	59
46	61
47	62
48	63
49	65
50	66
51	67
52	68
53	69
54	72
55	73
56	74
57	75
58	76
59	77
60	79
61	81
62	82
63	83
64	85
65	86
66	87
67	88
68	89
69	91
70	92
71	93
72	94
73	96
74	104
75	105

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	21
21	22
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	31
30	34
31	35
32	36
33	37
34	38
35	39
36	41
37	42
38	43
39	44
40	46
41	54
42	56
43	57
44	58
45	59
46	61
47	62
48	63
49	65
50	66
51	67
52	68
53	69
54	72
55	73
56	74
57	75
58	76
59	77
60	79
61	81
62	82
63	83
64	85
65	86
66	87
67	88
68	89
69	91
70	92
71	93
72	94
73	96
74	104
75	105

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	21
21	22
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	31
30	34
31	35
32	36
33	37
34	38
35	39
36	41
37	42
38	43
39	44
40	46
41	54
42	56
43	57
44	58
45	59
46	61
47	62
48	63
49	65
50	66
51	67
52	68
53	69
54	72
55	73
56	74
57	75
58	76
59	77
60	79
61	81
62	82
63	83
64	85
65	86
66	87
67	88
68	89
69	91
70	92
71	93
72	94
73	96
74	104
75	105