A385611 Numbers that can be written as s^w + t^x + u^y + v^z with 1 < s < t < u and {s,t,u,v} = {w,x,y,z} (the sequence of exponents can be any permutation of s,t,u,v).

202, 245, 254, 322, 340, 348, 377, 383, 400, 422, 460, 465, 468, 532, 545, 548, 568, 603, 628, 688, 700, 730, 736, 738, 739, 845, 865, 876, 892, 922, 936, 961, 977, 1002, 1029, 1033, 1036, 1092, 1122, 1138, 1174, 1205, 1234, 1236, 1265, 1269, 1338, 1403, 1407, 1433

Offset: 1

Author

Jean-Marc Rebert, Jul 04 2025

Keywords

• nonn

Examples

			202 = 2^5 + 3^4 + 4^3 + 5^2.
628 = 2^2 + 3^5 + 4^4 + 5^3.
936 = 2^2 + 3^5 + 4^3 + 5^4.
1234 = 2^2 + 3^4 + 4^5 + 5^3.
		

Crossrefs

Cf. A001597, A385232, A385233.