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 A323585 Third Moebius transform of A000219. Number of plane partitions of n whose multiset of rows is aperiodic and whose multiset of columns is also aperiodic and whose parts are relatively prime. 4

%I

%S 1,1,0,3,7,21,30,83,129,267,428,856,1332,2482,3909,6798,10853,18331,

%T 28665,47327,73829,118527,183898,290780,446508,695964,1061290,1631829,

%U 2470970,3759609,5646952,8512306,12700005,18972387,28120953,41690725,61392966,90379781

%N Third Moebius transform of A000219. Number of plane partitions of n whose multiset of rows is aperiodic and whose multiset of columns is also aperiodic and whose parts are relatively prime.

%C A multiset is aperiodic if its multiplicities are relatively prime.

%H Alois P. Heinz, <a href="/A323585/b323585.txt">Table of n, a(n) for n = 0..10000</a>

%F The Moebius transform T of a sequence q is T(q)(n) = Sum_{d|n} mu(n/d) * q(d) where mu = A008683. The first Moebius transform of A000219 is A300275 and the second is A323584.

%e The a(4) = 7 plane partitions with aperiodic multisets of rows and columns and relatively prime parts:

%e 31 211

%e .

%e 3 21 111

%e 1 1 1

%e .

%e 2 11

%e 1 1

%e 1 1

%e The same for a(5) = 21:

%e 41 32 311 221 2111

%e .

%e 4 3 31 21 22 21 211 111 1111

%e 1 2 1 2 1 11 1 11 1

%e .

%e 3 2 21 11 111

%e 1 2 1 11 1

%e 1 1 1 1 1

%e .

%e 2 11

%e 1 1

%e 1 1

%e 1 1

%t primeMS[n_]:=If[n==1,{},Flatten[Cases[FactorInteger[n],{p_,k_}:>Table[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 ptnplane[n_]:=Union[Map[Reverse@*primeMS,Join@@Permutations/@facs[n],{2}]];

%Y Cf. A000219, A000837, A003293, A100953, A300275, A303546, A320802, A321390, A323584, A323587.

%K nonn

%O 0,4

%A _Gus Wiseman_, Jan 19 2019

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Last modified January 25 07:29 EST 2020. Contains 331241 sequences. (Running on oeis4.)