1,6

David A. Corneth, Table of n, a(n) for n = 1..10000

a(n) = A025426(A336542(n)). - Michel Marcus, Jul 31 2020

a(11) = 3 as A336542 = 325 and can be written in three ways as a sum of two nonzero squares.

Cf. A025426, A274567.

Sequence in context: A286888 A257212 A001031 * A035250 A165054 A067743

Adjacent sequences: A336540 A336541 A336542 * A336544 A336545 A336546

nonn

David A. Corneth, Jul 24 2020

approved