A348648 - cp's OEIS frontend

A348648 Triangle T(n, k), n >= 0, 0 <= k <= n, read by rows; the even terms of Pascal's triangle (A007318) are clustered as wXwXw subtriangles with w = 2^s-1 for some s > 0; if A007318(n, k) is even then T(n, k) gives the corresponding s otherwise T(n, k) = 0.

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

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

cp's OEIS Frontend

A348648 Triangle T(n, k), n >= 0, 0 <= k <= n, read by rows; the even terms of Pascal's triangle (A007318) are clustered as wXwXw subtriangles with w = 2^s-1 for some s > 0; if A007318(n, k) is even then T(n, k) gives the corresponding s otherwise T(n, k) = 0.

Table of values

List of values

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

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

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