A173920 - cp's OEIS frontend

A173920 Triangle read by rows: T(n,k) = convolution of n with k in binary representation, 0<=k<=n.

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

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

cp's OEIS Frontend

A173920 Triangle read by rows: T(n,k) = convolution of n with k in binary representation, 0<=k<=n.

Table of values

List of values

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

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

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