A368041 - cp's OEIS frontend

A368041 a(n) is the least number k such that k^2 can be written as the difference of two positive squares in exactly n ways.

n	a(n)
0	1
1	3
2	8
3	16
4	12
5	64
6	128
7	24
8	512
9	1024
10	48
11	4096
12	72
13	60
14	32768
15	65536
16	192
17	144
18	524288
19	384
20	2097152
21	4194304
22	120
23	16777216
24	432
25	1536
26	134217728
27	576
28	3072
29	1073741824
30	2147483648
31	240
32	1152
33	17179869184
34	12288
35	68719476736
36	137438953472
37	360
38	1728
39	1099511627776

[1, 3, 8, 16, 12, 64, 128, 24, 512, 1024, 48, 4096, 72, 60, 32768, 65536, 192, 144, 524288, 384, 2097152, 4194304, 120, 16777216, 432, 1536, 134217728, 576, 3072, 1073741824, 2147483648, 240, 1152, 17179869184, 12288, 68719476736, 137438953472, 360, 1728, 1099511627776]

cp's OEIS Frontend

A368041 a(n) is the least number k such that k^2 can be written as the difference of two positive squares in exactly n ways.

Table of values

List of values