A077224 - cp's OEIS frontend

A077224 a(0) = 1; for n > 1, a(n) = smallest number > a(n-1) such that a(n) + a(k) is squarefree for k = 1 to n-1.

n	a(n)
0	1
1	2
2	4
3	9
4	13
5	29
6	33
7	101
8	105
9	109
10	157
11	177
12	253
13	289
14	301
15	353
16	409
17	429
18	465
19	501
20	533
21	553
22	589
23	609
24	681
25	753
26	877
27	933
28	965
29	1153
30	1477
31	1905
32	1977
33	2101
34	2125
35	2229
36	2305
37	2405
38	2605
39	2657
40	2801
41	2913
42	3305
43	3381
44	3489
45	3565
46	3777
47	3781
48	3881
49	4029

[1, 2, 4, 9, 13, 29, 33, 101, 105, 109, 157, 177, 253, 289, 301, 353, 409, 429, 465, 501, 533, 553, 589, 609, 681, 753, 877, 933, 965, 1153, 1477, 1905, 1977, 2101, 2125, 2229, 2305, 2405, 2605, 2657, 2801, 2913, 3305, 3381, 3489, 3565, 3777, 3781, 3881, 4029]

cp's OEIS Frontend

A077224 a(0) = 1; for n > 1, a(n) = smallest number > a(n-1) such that a(n) + a(k) is squarefree for k = 1 to n-1.

Table of values

List of values