Number of set partitions of [3n] into n subsets of size three such that all element sums are squares.

A278329

Number of set partitions of [3n] into n subsets of size three such that all element sums are squares.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =29a(6) =35a(7) =340a(8) =26579a(9) =390480a(10) =9514434a(11) =145963193a(12) =5474045270a(13) =87251356528

External references