A326819 - cp's OEIS frontend

A326819 Irregular triangle read by rows; for n >= 0, the n-th row corresponds to the elements of the set {(n-k) AND k, k = 0..n}, in ascending order (where AND denotes the bitwise AND operator).

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

[0, 0, 0, 1, 0, 0, 1, 2, 0, 2, 0, 1, 3, 0, 0, 1, 2, 4, 0, 2, 4, 0, 1, 3, 4, 5, 0, 4, 0, 1, 2, 5, 6, 0, 2, 6, 0, 1, 3, 7, 0, 0, 1, 2, 4, 8, 0, 2, 4, 8, 0, 1, 3, 4, 5, 8, 9, 0, 4, 8, 0, 1, 2, 5, 6, 8, 9, 10, 0, 2, 6, 8, 10, 0, 1, 3, 7, 8, 9, 11, 0, 8, 0, 1, 2, 4, 9, 10, 12]

cp's OEIS Frontend

A326819 Irregular triangle read by rows; for n >= 0, the n-th row corresponds to the elements of the set {(n-k) AND k, k = 0..n}, in ascending order (where AND denotes the bitwise AND operator).

Table of values

List of values

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

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

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