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A213179 Numbers k such that 2*k is a partition number. 12

%I #23 Mar 01 2019 06:21:12

%S 1,11,15,21,28,88,245,396,501,979,1218,1505,1859,2802,3421,6155,18669,

%T 26587,44567,52779,62377,102113,225638,307077,357610,415910,650078,

%U 870815,1006279,1161760,2043984,3544750,4059132,6066082,6924325,7898238,13271830

%N Numbers k such that 2*k is a partition number.

%F a(n) = A052001(n)/2.

%e 11 is in the sequence because 2*11 = 22 and 22 is a partition number: p(8) = A000041(8) = 22.

%t Select[PartitionsP[Range@200]/2, IntegerQ] (* _Giovanni Resta_, May 05 2013 *)

%Y Cf. A000041, A052001, A213365, A216258, A217725, A217726, A222175, A222178, A222179, A225317, A225323.

%K nonn

%O 1,2

%A _Omar E. Pol_, Feb 27 2013

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Last modified March 28 08:22 EDT 2024. Contains 371236 sequences. (Running on oeis4.)