A336543 a(n) is the number of ways to write A336542(n) as a sum of two nonzero squares.

0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 2, 3, 4, 3, 4, 4, 3, 4, 4, 6, 3, 5, 5, 6, 3, 5, 6, 8, 4, 8, 6, 6, 8, 8, 9, 4, 6, 7, 10, 9, 4, 12, 7, 8, 8, 10, 12, 12, 4, 7, 9, 8, 12, 12, 5, 16, 8, 9, 16, 13, 10, 12, 16, 15, 5, 8, 18, 16, 14, 10, 10, 14, 15, 5, 20, 18, 16, 9, 11

Offset: 1

Author

David A. Corneth, Jul 24 2020

Keywords

• nonn

Examples

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

Links

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

Crossrefs

Cf. A025426, A274567.

Formula

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