1,1

Table of n, a(n) for n=1..78.

A248214(2)=7, 7^2 + 1 = 50 = 2*5*5, so 50 is not squarefree, the square being 5*5 = 25.

Cf. A248214, A248576.

Sequence in context: A185070 A272680 A082202 * A051514 A103363 A111446

Adjacent sequences: A283449 A283450 A283451 * A283453 A283454 A283455

nonn

Robert Price, Mar 07 2017

approved