A374090 - cp's OEIS frontend

A374090 a(n) is the smallest nonnegative integer k where exactly n ordered pairs of positive integers (x, y) exist such that x^2 + x*y + y^2 = k.

n	a(n)
0	0
1	3
2	7
3	147
4	91
5	7203
6	637
7	352947
8	1729
9	24843
10	31213
11	847425747
12	12103
13	41523861603
14	405769
15	1217307
16	53599
17	99698791708803
18	157339
19	4885240793731347
20	593047
21	59648043

[0, 3, 7, 147, 91, 7203, 637, 352947, 1729, 24843, 31213, 847425747, 12103, 41523861603, 405769, 1217307, 53599, 99698791708803, 157339, 4885240793731347, 593047, 59648043]

cp's OEIS Frontend

A374090 a(n) is the smallest nonnegative integer k where exactly n ordered pairs of positive integers (x, y) exist such that x^2 + x*y + y^2 = k.

Table of values

List of values