1,1

Robert Price, Table of n, a(n) for n = 1..127

A280149(1)=10, 3^10-2^10=58025, 58025=5*5*11*211, so 58025 is not squarefree the square being 5*5=25.

Cf. A280149, A282688.

Sequence in context: A118445 A000497 A028341 * A282874 A144942 A122140

Adjacent sequences: A282686 A282687 A282688 * A282690 A282691 A282692

nonn

Robert Price, Feb 20 2017

approved