A080572 - cp's OEIS frontend

A080572 Number of ordered pairs (i,j), 0 <= i,j < n, for which (i & j) is nonzero, where & is the bitwise AND operator.

n	a(n)
0	0
1	0
2	1
3	2
4	7
5	8
6	15
7	24
8	37
9	38
10	49
11	62
12	81
13	98
14	121
15	146
16	175
17	176
18	195
19	216
20	247
21	272
22	307
23	344
24	387
25	420
26	463
27	508
28	559
29	608
30	663
31	720
32	781
33	782
34	817
35	854
36	909
37	950
38	1009
39	1070
40	1141
41	1190
42	1257
43	1326
44	1405
45	1478
46	1561
47	1646
48	1737
49	1802
50	1885
51	1970
52	2065
53	2154

[0, 0, 1, 2, 7, 8, 15, 24, 37, 38, 49, 62, 81, 98, 121, 146, 175, 176, 195, 216, 247, 272, 307, 344, 387, 420, 463, 508, 559, 608, 663, 720, 781, 782, 817, 854, 909, 950, 1009, 1070, 1141, 1190, 1257, 1326, 1405, 1478, 1561, 1646, 1737, 1802, 1885, 1970, 2065, 2154]

cp's OEIS Frontend

A080572 Number of ordered pairs (i,j), 0 <= i,j < n, for which (i & j) is nonzero, where & is the bitwise AND operator.

Table of values

List of values