A332006 Number of compositions (ordered partitions) of n into distinct centered square numbers.

1, 1, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 2, 6, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 2, 6, 0, 0, 0, 0, 0, 0, 2, 6, 0, 1, 2, 6, 24, 0, 2, 6, 0, 0, 0, 0, 0, 0, 2, 6, 0, 0, 0, 6, 24, 1, 2, 0, 0, 0, 4, 12, 0, 0, 0, 6, 24, 0, 2, 6, 0, 0, 0, 12, 48, 0, 0, 0, 24, 121, 4, 6

Offset: 0

Author

Ilya Gutkovskiy, Feb 04 2020

Keywords

• nonn

Examples

			a(19) = 6 because we have [13, 5, 1], [13, 1, 5], [5, 13, 1], [5, 1, 13], [1, 13, 5] and [1, 5, 13].
		

Links

• Eric Weisstein's World of Mathematics, Centered Square Number
• Index entries for sequences related to compositions

Crossrefs

Cf. A001844, A006456, A280951, A281082, A282504, A331844, A331984, A332005.