A347773 - cp's OEIS frontend

A347773 Square array read by antidiagonals downwards: T(n,k) is the smallest positive integer whose n-th power is the sum of k n-th powers of positive integers, or 0 if no such number exists.

n	a(n)
1	1
2	2
3	1
4	3
5	5
6	1
7	4
8	3
9	0
10	1
11	5
12	2
13	6
14	0
15	1
16	6
17	4
18	7
19	422481
20	0
21	1
22	7
23	3
24	4
25	353

[1, 2, 1, 3, 5, 1, 4, 3, 0, 1, 5, 2, 6, 0, 1, 6, 4, 7, 422481, 0, 1, 7, 3, 4, 353]