A086012 - cp's OEIS frontend

A086012 Number of 4's in decimal expansion of n^2.

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	0
6	0
7	1
8	1
9	0
10	0
11	0
12	2
13	0
14	0
15	0
16	0
17	0
18	1
19	0
20	1
21	2
22	2
23	0
24	0
25	0
26	0
27	0
28	1
29	1
30	0
31	0
32	1
33	0
34	0
35	0
36	0
37	0
38	3
39	0
40	0
41	0
42	1
43	1
44	0
45	0
46	0
47	0
48	1
49	1
50	0
51	0
52	1
53	0
54	0
55	0
56	0
57	1
58	1
59	1
60	0
61	0
62	2
63	0
64	1
65	1
66	1
67	2
68	2
69	1
70	1
71	1
72	1
73	0
74	1
75	0
76	0
77	0
78	1
79	1
80	1
81	0
82	1
83	0
84	0
85	0
86	0
87	0
88	2
89	0
90	0
91	0
92	2
93	1
94	0
95	0
96	0
97	1
98	1
99	0
100	0
101	0
102	2
103	0
104	0

[0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1, 0, 1, 2, 2, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 3, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 2, 0, 1, 1, 1, 2, 2, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 2, 0, 0, 0, 2, 1, 0, 0, 0, 1, 1, 0, 0, 0, 2, 0, 0]

cp's OEIS Frontend

A086012 Number of 4's in decimal expansion of n^2.

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	0
6	0
7	1
8	1
9	0
10	0
11	0
12	2
13	0
14	0
15	0
16	0
17	0
18	1
19	0
20	1
21	2
22	2
23	0
24	0
25	0
26	0
27	0
28	1
29	1
30	0
31	0
32	1
33	0
34	0
35	0
36	0
37	0
38	3
39	0
40	0
41	0
42	1
43	1
44	0
45	0
46	0
47	0
48	1
49	1
50	0
51	0
52	1
53	0
54	0
55	0
56	0
57	1
58	1
59	1
60	0
61	0
62	2
63	0
64	1
65	1
66	1
67	2
68	2
69	1
70	1
71	1
72	1
73	0
74	1
75	0
76	0
77	0
78	1
79	1
80	1
81	0
82	1
83	0
84	0
85	0
86	0
87	0
88	2
89	0
90	0
91	0
92	2
93	1
94	0
95	0
96	0
97	1
98	1
99	0
100	0
101	0
102	2
103	0
104	0

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	0
6	0
7	1
8	1
9	0
10	0
11	0
12	2
13	0
14	0
15	0
16	0
17	0
18	1
19	0
20	1
21	2
22	2
23	0
24	0
25	0
26	0
27	0
28	1
29	1
30	0
31	0
32	1
33	0
34	0
35	0
36	0
37	0
38	3
39	0
40	0
41	0
42	1
43	1
44	0
45	0
46	0
47	0
48	1
49	1
50	0
51	0
52	1
53	0
54	0
55	0
56	0
57	1
58	1
59	1
60	0
61	0
62	2
63	0
64	1
65	1
66	1
67	2
68	2
69	1
70	1
71	1
72	1
73	0
74	1
75	0
76	0
77	0
78	1
79	1
80	1
81	0
82	1
83	0
84	0
85	0
86	0
87	0
88	2
89	0
90	0
91	0
92	2
93	1
94	0
95	0
96	0
97	1
98	1
99	0
100	0
101	0
102	2
103	0
104	0

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	0
6	0
7	1
8	1
9	0
10	0
11	0
12	2
13	0
14	0
15	0
16	0
17	0
18	1
19	0
20	1
21	2
22	2
23	0
24	0
25	0
26	0
27	0
28	1
29	1
30	0
31	0
32	1
33	0
34	0
35	0
36	0
37	0
38	3
39	0
40	0
41	0
42	1
43	1
44	0
45	0
46	0
47	0
48	1
49	1
50	0
51	0
52	1
53	0
54	0
55	0
56	0
57	1
58	1
59	1
60	0
61	0
62	2
63	0
64	1
65	1
66	1
67	2
68	2
69	1
70	1
71	1
72	1
73	0
74	1
75	0
76	0
77	0
78	1
79	1
80	1
81	0
82	1
83	0
84	0
85	0
86	0
87	0
88	2
89	0
90	0
91	0
92	2
93	1
94	0
95	0
96	0
97	1
98	1
99	0
100	0
101	0
102	2
103	0
104	0