A111890 - cp's OEIS frontend

A111890 Number of numbers m <= n such that 0 equals the second digit after decimal point of square root of n in decimal representation.

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

[1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14]

cp's OEIS Frontend

A111890 Number of numbers m <= n such that 0 equals the second digit after decimal point of square root of n in decimal representation.

Table of values

List of values

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

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

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