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A237269 Number of partitions of n such that at least half the parts are identical. 1

%I #13 Feb 07 2014 10:16:42

%S 1,1,2,3,5,7,10,14,20,26,35,47,61,79,102,129,165,208,260,325,404,498,

%T 616,756,925,1126,1374,1662,2013,2427,2922,3506,4206,5021,5998,7132,

%U 8485,10057,11922,14081,16627,19583,23053,27065,31768,37189,43527,50826,59322

%N Number of partitions of n such that at least half the parts are identical.

%H Alois P. Heinz, <a href="/A237269/b237269.txt">Table of n, a(n) for n = 0..200</a>

%e Of the 15 partitions of 7, only [1,2,4] does not qualify, so that a(7) = 14.

%t Map[Length[Select[Map[Max[Map[Last, Tally[#]]]/Length[#] &, IntegerPartitions[#]], # >= 1/2 &]] &, Range[50]] (* _Peter J. C. Moses_, Feb 05 2014 *)

%Y Cf. A000041.

%K nonn

%O 0,3

%A _Clark Kimberling_, Feb 05 2014

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Last modified April 19 12:06 EDT 2024. Contains 371792 sequences. (Running on oeis4.)