A374160 - cp's OEIS frontend

A374160 a(n) is the smallest nonnegative integer k where exactly n pairs of positive integers (x, y) exist such that x^2 + 11*y^2 = k.

n	a(n)
0	0
1	12
2	60
3	180
4	540
5	1620
6	2700
7	8100
8	12420
9	20700
10	37260
11	1180980
12	62100
13	476100
14	335340
15	186300
16	310500
17	1822500
18	558900
19	53144100
20	931500
21	1676700
22	4284900
23	324860625
24	1925100
25	4657500
26	244462860
27	12854700
28	8383500

[0, 12, 60, 180, 540, 1620, 2700, 8100, 12420, 20700, 37260, 1180980, 62100, 476100, 335340, 186300, 310500, 1822500, 558900, 53144100, 931500, 1676700, 4284900, 324860625, 1925100, 4657500, 244462860, 12854700, 8383500]

cp's OEIS Frontend

A374160 a(n) is the smallest nonnegative integer k where exactly n pairs of positive integers (x, y) exist such that x^2 + 11*y^2 = k.

Table of values

List of values