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 A186992 Number of subsets of {1, 2, ..., n} containing n and having <=8 pairwise coprime elements. 4

%I

%S 1,2,4,4,12,4,28,16,32,12,116,16,248,48,72,112,728,64,1512,192,384,

%T 256,3783,255,3086,732,2674,826,14164,255,25999,6275,5769,3785,8818,

%U 1681,67036,7984,13643,4910,133296,2664,218406,24268,26254

%N Number of subsets of {1, 2, ..., n} containing n and having <=8 pairwise coprime elements.

%H Alois P. Heinz, <a href="/A186992/b186992.txt">Table of n, a(n) for n = 1..200</a>

%Y Column 8 of triangle A186975. Sum of A186991 and A186979.

%K nonn

%O 1,2

%A _Alois P. Heinz_, Mar 03 2011

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Last modified December 13 06:26 EST 2019. Contains 329968 sequences. (Running on oeis4.)