A034019 - cp's OEIS frontend

A034019 Numbers that are imprimitively (and possibly also primitively) represented by x^2+xy+y^2.

n	a(n)
1	4
2	9
3	12
4	16
5	25
6	27
7	28
8	36
9	48
10	49
11	52
12	63
13	64
14	75
15	76
16	81
17	84
18	100
19	108
20	112
21	117
22	121
23	124
24	144
25	147
26	148
27	156
28	169
29	171
30	172
31	175
32	189
33	192
34	196
35	208
36	225
37	228
38	243
39	244
40	252
41	256
42	268
43	279
44	289
45	292
46	300
47	304
48	316
49	324
50	325
51	333
52	336
53	343

[4, 9, 12, 16, 25, 27, 28, 36, 48, 49, 52, 63, 64, 75, 76, 81, 84, 100, 108, 112, 117, 121, 124, 144, 147, 148, 156, 169, 171, 172, 175, 189, 192, 196, 208, 225, 228, 243, 244, 252, 256, 268, 279, 289, 292, 300, 304, 316, 324, 325, 333, 336, 343]

cp's OEIS Frontend

A034019 Numbers that are imprimitively (and possibly also primitively) represented by x^2+xy+y^2.

Table of values

List of values

n	a(n)
1	4
2	9
3	12
4	16
5	25
6	27
7	28
8	36
9	48
10	49
11	52
12	63
13	64
14	75
15	76
16	81
17	84
18	100
19	108
20	112
21	117
22	121
23	124
24	144
25	147
26	148
27	156
28	169
29	171
30	172
31	175
32	189
33	192
34	196
35	208
36	225
37	228
38	243
39	244
40	252
41	256
42	268
43	279
44	289
45	292
46	300
47	304
48	316
49	324
50	325
51	333
52	336
53	343

n	a(n)
1	4
2	9
3	12
4	16
5	25
6	27
7	28
8	36
9	48
10	49
11	52
12	63
13	64
14	75
15	76
16	81
17	84
18	100
19	108
20	112
21	117
22	121
23	124
24	144
25	147
26	148
27	156
28	169
29	171
30	172
31	175
32	189
33	192
34	196
35	208
36	225
37	228
38	243
39	244
40	252
41	256
42	268
43	279
44	289
45	292
46	300
47	304
48	316
49	324
50	325
51	333
52	336
53	343

n	a(n)
1	4
2	9
3	12
4	16
5	25
6	27
7	28
8	36
9	48
10	49
11	52
12	63
13	64
14	75
15	76
16	81
17	84
18	100
19	108
20	112
21	117
22	121
23	124
24	144
25	147
26	148
27	156
28	169
29	171
30	172
31	175
32	189
33	192
34	196
35	208
36	225
37	228
38	243
39	244
40	252
41	256
42	268
43	279
44	289
45	292
46	300
47	304
48	316
49	324
50	325
51	333
52	336
53	343