A369703 - cp's OEIS frontend

A369703 Numbers X such that X^2 + Y^2 = 2^(2*k) + 1 and X > Y > 0 and k is the binary digit length of X-1.

n	a(n)
1	2
2	4
3	7
4	8
5	16
6	25
7	31
8	32
9	56
10	64
11	92
12	103
13	127
14	128
15	256
16	409
17	424
18	428
19	473
20	484
21	496
22	511
23	512
24	904
25	1024
26	1639
27	1676
28	2047
29	2048
30	3041
31	3359
32	4064
33	4096
34	6476
35	6553
36	6887
37	6956
38	7681
39	8161
40	8191
41	8192
42	14456
43	16384
44	24065
45	24935
46	25508
47	26060
48	26215
49	28360

[2, 4, 7, 8, 16, 25, 31, 32, 56, 64, 92, 103, 127, 128, 256, 409, 424, 428, 473, 484, 496, 511, 512, 904, 1024, 1639, 1676, 2047, 2048, 3041, 3359, 4064, 4096, 6476, 6553, 6887, 6956, 7681, 8161, 8191, 8192, 14456, 16384, 24065, 24935, 25508, 26060, 26215, 28360]

cp's OEIS Frontend

A369703 Numbers X such that X^2 + Y^2 = 2^(2*k) + 1 and X > Y > 0 and k is the binary digit length of X-1.

Table of values

List of values