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A372121 Row sums of A371783 and A371954 (k-quanimous partitions). 2

%I #6 Apr 20 2024 10:49:21

%S 1,3,4,9,8,22,16,42,41,74,57,183,102,233

%N Row sums of A371783 and A371954 (k-quanimous partitions).

%C A finite multiset of numbers is defined to be k-quanimous iff it can be partitioned into k multisets with equal sums. The triangles A371783 and A371954 count k-quanimous partitions.

%t hwt[n_]:=Total[Cases[FactorInteger[n],{p_,k_}:>PrimePi[p]*k]];

%t facs[n_]:=If[n<=1,{{}},Join@@Table[Map[Prepend[#,d]&, Select[facs[n/d],Min@@#>=d&]], {d,Rest[Divisors[n]]}]];

%t Table[Sum[Length[Select[IntegerPartitions[n], Select[facs[Times@@Prime/@#], Length[#]==k&&SameQ@@hwt/@#&]!={}&]],{k,Divisors[n]}],{n,1,10}]

%Y Row sums of A371783.

%Y Row sums of A371954.

%Y A000005 counts divisors.

%Y A000041 counts integer partitions.

%Y A002219 (aerated) counts biquanimous partitions, ranks A357976.

%Y A321452 counts quanimous partitions, complement A321451.

%Y A371796 counts quanimous sets, differences A371797.

%Y Cf. A006827, A035470, A064914, A321455, A365543, A371737, A371791, A371795.

%K nonn,more

%O 1,2

%A _Gus Wiseman_, Apr 20 2024

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Last modified June 25 23:44 EDT 2024. Contains 373715 sequences. (Running on oeis4.)