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A171275 T(n,m) = number of 1..m integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1 46

%I

%S 1,2,1,3,4,1,4,9,7,1,5,16,26,15,1,6,25,62,74,23,1,7,36,123,240,211,48,

%T 1,8,49,211,597,914,600,87,1,9,64,338,1235,2911,3508,1674,157,1,10,81,

%U 506,2318,7250,14052,13297,4715,274,1,11,100,723,3978,16018,42317,67578

%N T(n,m) = number of 1..m integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1

%C Table begins

%C .1......2.........3..........4...........5............6............7

%C .1......4.........9.........16..........25...........36...........49

%C .1......7........26.........62.........123..........211..........338

%C .1.....15........74........240.........597.........1235.........2318

%C .1.....23.......211........914........2911.........7250........16018

%C .1.....48.......600.......3508.......14052........42317.......109747

%C .1.....87......1674......13297.......67578.......245724.......749530

%C .1....157......4715......50461......325175......1434390......5133206

%C .1....274.....13195.....191050.....1558365......8335997.....35065504

%C .1....560.....36879.....722932.....7480022.....48454798....239373097

%C .1....933....101640....2726415....35901297....281866663...1635980248

%C .1...1822....283834...10295319...171849872...1636091940..11156399766

%C .1...3203....780315...38671908...821797463...9491058267..76079006282

%C .1...5993...2174226..146751022..3945906605..55269961550.519915363356

%C .1..10478...5966025..550500089.18840748309.320329432031

%C .1..19922..16503544.2073212701.90073678499

%C .1..34214..45368343.7808201806

%C .1..63331.124910711

%C .1.110943

%C .1

%H R. H. Hardin, <a href="/A171275/b171275.txt">Table of n, a(n) for n=1..221</a>

%K nonn,tabl

%O 1,2

%A _R. H. Hardin_ Dec 06 2009

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Last modified June 15 17:43 EDT 2019. Contains 324142 sequences. (Running on oeis4.)