A054227 - cp's OEIS frontend

A054227 Number of positive integers <= 2^n of form x^2 + 13 y^2.

n	a(n)
0	1
1	1
2	2
3	2
4	6
5	10
6	19
7	32
8	58
9	105
10	194
11	364
12	682
13	1295
14	2467
15	4723
16	9059
17	17448
18	33706
19	65256
20	126643
21	246179
22	479336
23	934603
24	1824646
25	3566467
26	6978040
27	13666391
28	26788334
29	52551600
30	103168475
31	202676349
32	398411711
33	783639902
34	1542192977

[1, 1, 2, 2, 6, 10, 19, 32, 58, 105, 194, 364, 682, 1295, 2467, 4723, 9059, 17448, 33706, 65256, 126643, 246179, 479336, 934603, 1824646, 3566467, 6978040, 13666391, 26788334, 52551600, 103168475, 202676349, 398411711, 783639902, 1542192977]

cp's OEIS Frontend

A054227 Number of positive integers <= 2^n of form x^2 + 13 y^2.

Table of values

List of values