A278100 - cp's OEIS frontend

A278100 Number of squarefree positive integers less than n^2.

n	a(n)
1	0
2	3
3	6
4	11
5	16
6	23
7	31
8	39
9	50
10	61
11	75
12	89
13	103
14	120
15	139
16	157
17	177
18	199
19	219
20	243
21	269
22	297
23	323
24	351
25	381
26	412
27	444
28	477
29	513
30	547
31	584
32	624
33	660
34	703
35	745
36	789
37	835
38	882
39	928
40	977
41	1025
42	1073
43	1124
44	1174
45	1230
46	1285
47	1342
48	1400
49	1460
50	1523
51	1582
52	1645
53	1708

[0, 3, 6, 11, 16, 23, 31, 39, 50, 61, 75, 89, 103, 120, 139, 157, 177, 199, 219, 243, 269, 297, 323, 351, 381, 412, 444, 477, 513, 547, 584, 624, 660, 703, 745, 789, 835, 882, 928, 977, 1025, 1073, 1124, 1174, 1230, 1285, 1342, 1400, 1460, 1523, 1582, 1645, 1708]

cp's OEIS Frontend

A278100 Number of squarefree positive integers less than n^2.

Table of values

List of values