A086010 - cp's OEIS frontend

A086010 Number of 2's in decimal expansion of n^2.

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

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

cp's OEIS Frontend

A086010 Number of 2's in decimal expansion of n^2.

Table of values

List of values

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

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

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