A118258 - cp's OEIS frontend

A118258 Numbers of carefree couples (a,b) with a,b<=n.

n	a(n)
1	1
2	3
3	7
4	9
5	16
6	20
7	31
8	35
9	39
10	46
11	63
12	67
13	87
14	98
15	112
16	119
17	146
18	152
19	182
20	189
21	209
22	228
23	265
24	273
25	286
26	308
27	321
28	330
29	375
30	391
31	440
32	453
33	486
34	515
35	554
36	565
37	624
38	657
39	698
40	712
41	778
42	801
43	871
44	888
45	906
46	946
47	1022
48	1037
49	1063
50	1080
51	1133
52	1152
53	1236
54	1252

[1, 3, 7, 9, 16, 20, 31, 35, 39, 46, 63, 67, 87, 98, 112, 119, 146, 152, 182, 189, 209, 228, 265, 273, 286, 308, 321, 330, 375, 391, 440, 453, 486, 515, 554, 565, 624, 657, 698, 712, 778, 801, 871, 888, 906, 946, 1022, 1037, 1063, 1080, 1133, 1152, 1236, 1252]

cp's OEIS Frontend

A118258 Numbers of carefree couples (a,b) with a,b<=n.

Table of values

List of values