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Number of partitions of n into distinct parts with boundary size 3.
3

%I #9 Feb 09 2016 11:48:26

%S 1,2,2,4,6,7,10,11,13,18,20,21,27,29,32,37,42,45,49,54,58,65,70,72,82,

%T 87,90,98,103,111,119,124,130,139,147,151,163,169,174,187,196,203,211,

%U 219,229,240,250,256,268,279,288,300,311,318,333,342,350,368,376

%N Number of partitions of n into distinct parts with boundary size 3.

%C The boundary size is the number of parts having fewer than two neighbors.

%H Alois P. Heinz, <a href="/A227560/b227560.txt">Table of n, a(n) for n = 7..1000</a>

%Y Column k=3 of A227345, A227551.

%K nonn

%O 7,2

%A _Alois P. Heinz_, Jul 16 2013