A308834 - cp's OEIS frontend

A308834 a(n) is the smallest error in trying to solve n^4 = x^4 + y^4. That is, for each n from 2 on, find positive integers x and y, x <= y < n such that |n^4 - x^4 - y^4| is minimal and let a(n) = n^4 - x^4 - y^4.

n	a(n)
2	14
3	49
4	94
5	113
6	46
7	-191
8	399
9	64
10	-657
11	545
12	-466
13	-721
14	-145
15	1328
16	270
17	-2751
18	719
19	-751
20	1118
21	-1376
22	-1041
23	1839
24	1310
25	1663
26	815
27	5184
28	-306
29	9104
30	863
31	1455
32	4320
33	7024
34	-5105
35	4289
36	11504
37	64
38	-12016
39	2816
40	10799
41	-11200
42	6094
43	-2671
44	-226
45	20753

[14, 49, 94, 113, 46, -191, 399, 64, -657, 545, -466, -721, -145, 1328, 270, -2751, 719, -751, 1118, -1376, -1041, 1839, 1310, 1663, 815, 5184, -306, 9104, 863, 1455, 4320, 7024, -5105, 4289, 11504, 64, -12016, 2816, 10799, -11200, 6094, -2671, -226, 20753]

cp's OEIS Frontend

A308834 a(n) is the smallest error in trying to solve n^4 = x^4 + y^4. That is, for each n from 2 on, find positive integers x and y, x <= y < n such that |n^4 - x^4 - y^4| is minimal and let a(n) = n^4 - x^4 - y^4.

Table of values

List of values