A275019 - cp's OEIS frontend

A275019 2-adic valuation of tetrahedral numbers C(n+2,3) = n(n+1)(n+2)/6 = A000292(n).

n	a(n)
1	0
2	2
3	1
4	2
5	0
6	3
7	2
8	3
9	0
10	2
11	1
12	2
13	0
14	4
15	3
16	4
17	0
18	2
19	1
20	2
21	0
22	3
23	2
24	3
25	0
26	2
27	1
28	2
29	0
30	5
31	4
32	5
33	0
34	2
35	1
36	2
37	0
38	3
39	2
40	3
41	0
42	2
43	1
44	2
45	0
46	4
47	3
48	4
49	0
50	2
51	1
52	2
53	0
54	3
55	2
56	3
57	0
58	2
59	1
60	2
61	0
62	6
63	5
64	6
65	0
66	2
67	1
68	2
69	0
70	3
71	2
72	3
73	0
74	2
75	1
76	2
77	0
78	4
79	3
80	4
81	0
82	2
83	1
84	2
85	0
86	3
87	2
88	3
89	0
90	2
91	1
92	2
93	0
94	5
95	4
96	5
97	0
98	2
99	1
100	2
101	0
102	3
103	2
104	3
105	0
106	2
107	1
108	2
109	0
110	4

[0, 2, 1, 2, 0, 3, 2, 3, 0, 2, 1, 2, 0, 4, 3, 4, 0, 2, 1, 2, 0, 3, 2, 3, 0, 2, 1, 2, 0, 5, 4, 5, 0, 2, 1, 2, 0, 3, 2, 3, 0, 2, 1, 2, 0, 4, 3, 4, 0, 2, 1, 2, 0, 3, 2, 3, 0, 2, 1, 2, 0, 6, 5, 6, 0, 2, 1, 2, 0, 3, 2, 3, 0, 2, 1, 2, 0, 4, 3, 4, 0, 2, 1, 2, 0, 3, 2, 3, 0, 2, 1, 2, 0, 5, 4, 5, 0, 2, 1, 2, 0, 3, 2, 3, 0, 2, 1, 2, 0, 4]

cp's OEIS Frontend

A275019 2-adic valuation of tetrahedral numbers C(n+2,3) = n(n+1)(n+2)/6 = A000292(n).

Table of values

List of values

n	a(n)
1	0
2	2
3	1
4	2
5	0
6	3
7	2
8	3
9	0
10	2
11	1
12	2
13	0
14	4
15	3
16	4
17	0
18	2
19	1
20	2
21	0
22	3
23	2
24	3
25	0
26	2
27	1
28	2
29	0
30	5
31	4
32	5
33	0
34	2
35	1
36	2
37	0
38	3
39	2
40	3
41	0
42	2
43	1
44	2
45	0
46	4
47	3
48	4
49	0
50	2
51	1
52	2
53	0
54	3
55	2
56	3
57	0
58	2
59	1
60	2
61	0
62	6
63	5
64	6
65	0
66	2
67	1
68	2
69	0
70	3
71	2
72	3
73	0
74	2
75	1
76	2
77	0
78	4
79	3
80	4
81	0
82	2
83	1
84	2
85	0
86	3
87	2
88	3
89	0
90	2
91	1
92	2
93	0
94	5
95	4
96	5
97	0
98	2
99	1
100	2
101	0
102	3
103	2
104	3
105	0
106	2
107	1
108	2
109	0
110	4

n	a(n)
1	0
2	2
3	1
4	2
5	0
6	3
7	2
8	3
9	0
10	2
11	1
12	2
13	0
14	4
15	3
16	4
17	0
18	2
19	1
20	2
21	0
22	3
23	2
24	3
25	0
26	2
27	1
28	2
29	0
30	5
31	4
32	5
33	0
34	2
35	1
36	2
37	0
38	3
39	2
40	3
41	0
42	2
43	1
44	2
45	0
46	4
47	3
48	4
49	0
50	2
51	1
52	2
53	0
54	3
55	2
56	3
57	0
58	2
59	1
60	2
61	0
62	6
63	5
64	6
65	0
66	2
67	1
68	2
69	0
70	3
71	2
72	3
73	0
74	2
75	1
76	2
77	0
78	4
79	3
80	4
81	0
82	2
83	1
84	2
85	0
86	3
87	2
88	3
89	0
90	2
91	1
92	2
93	0
94	5
95	4
96	5
97	0
98	2
99	1
100	2
101	0
102	3
103	2
104	3
105	0
106	2
107	1
108	2
109	0
110	4

n	a(n)
1	0
2	2
3	1
4	2
5	0
6	3
7	2
8	3
9	0
10	2
11	1
12	2
13	0
14	4
15	3
16	4
17	0
18	2
19	1
20	2
21	0
22	3
23	2
24	3
25	0
26	2
27	1
28	2
29	0
30	5
31	4
32	5
33	0
34	2
35	1
36	2
37	0
38	3
39	2
40	3
41	0
42	2
43	1
44	2
45	0
46	4
47	3
48	4
49	0
50	2
51	1
52	2
53	0
54	3
55	2
56	3
57	0
58	2
59	1
60	2
61	0
62	6
63	5
64	6
65	0
66	2
67	1
68	2
69	0
70	3
71	2
72	3
73	0
74	2
75	1
76	2
77	0
78	4
79	3
80	4
81	0
82	2
83	1
84	2
85	0
86	3
87	2
88	3
89	0
90	2
91	1
92	2
93	0
94	5
95	4
96	5
97	0
98	2
99	1
100	2
101	0
102	3
103	2
104	3
105	0
106	2
107	1
108	2
109	0
110	4