A198773 - cp's OEIS frontend

A198773 Numbers having exactly two representations by the quadratic form x^2+xy+y^2 with 0<=x<=y.

n	a(n)
1	49
2	91
3	133
4	147
5	169
6	196
7	217
8	247
9	259
10	273
11	301
12	343
13	361
14	364
15	399
16	403
17	427
18	441
19	469
20	481
21	507
22	511
23	532
24	553
25	559
26	588
27	589
28	651
29	676
30	679
31	703
32	721
33	741
34	763
35	777
36	784
37	793
38	817
39	819
40	868
41	871
42	889
43	903
44	949
45	961
46	973
47	988
48	1027
49	1029
50	1036
51	1057
52	1083
53	1092
54	1099
55	1141
56	1147

[49, 91, 133, 147, 169, 196, 217, 247, 259, 273, 301, 343, 361, 364, 399, 403, 427, 441, 469, 481, 507, 511, 532, 553, 559, 588, 589, 651, 676, 679, 703, 721, 741, 763, 777, 784, 793, 817, 819, 868, 871, 889, 903, 949, 961, 973, 988, 1027, 1029, 1036, 1057, 1083, 1092, 1099, 1141, 1147]

cp's OEIS Frontend

A198773 Numbers having exactly two representations by the quadratic form x^2+xy+y^2 with 0<=x<=y.

Table of values

List of values