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Number of 8-element subsets of [n] having a prime element sum.
2

%I #4 Oct 19 2018 10:29:52

%S 0,3,11,35,101,275,669,1486,2970,5474,9514,16071,26652,43301,68207,

%T 103901,153339,220576,311048,432343,594218,809436,1093733,1466746,

%U 1951992,2577872,3377119,4387788,5652659,7220623,9146776,11494964,14338214,17762174,21865783

%N Number of 8-element subsets of [n] having a prime element sum.

%H Alois P. Heinz, <a href="/A320683/b320683.txt">Table of n, a(n) for n = 8..500</a>

%Y Column k=8 of A282516.

%K nonn

%O 8,2

%A _Alois P. Heinz_, Oct 19 2018