A374579 - cp's OEIS frontend

A374579 a(n) is the smallest number which can be represented as the sum of n distinct nonzero fourth powers in exactly 2 ways, or -1 if no such number exists.

n	a(n)
1	-1
2	635318657
3	6578
4	6834
5	7459
6	8755
7	18755
8	23412
9	43893
10	53893
11	92309
12	123335
13	182566
14	232647
15	298183
16	393848
17	521849
18	681849
19	872105
20	1066586
21	1343612
22	1623453
23	1955229
24	2412205
25	2811596
26	3424941
27	4132222

[-1, 635318657, 6578, 6834, 7459, 8755, 18755, 23412, 43893, 53893, 92309, 123335, 182566, 232647, 298183, 393848, 521849, 681849, 872105, 1066586, 1343612, 1623453, 1955229, 2412205, 2811596, 3424941, 4132222]

cp's OEIS Frontend

A374579 a(n) is the smallest number which can be represented as the sum of n distinct nonzero fourth powers in exactly 2 ways, or -1 if no such number exists.

Table of values

List of values