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%I #10 Nov 05 2020 05:30:18
%S 1,8,35,126,417,1324,4111,12602,38333,116040,350187,1054678,3172249,
%T 9533156,28632263,85962354,258018165,774316672,2323474339,6971471630,
%U 20916512081,62753730588,188269580415,564825518506,1694510109997
%N Row sums of A094615.
%F a(n) = 2(a(n-1)+3^n)+n-1, a(0)=1.
%F a(n) = 2*3^(n+1)-2^(n+2)-n-1. - _Benoit Cloitre_, May 23 2004
%o (PARI) a(n)=2*3^(n+1)-2^(n+2)-n-1
%Y Cf. A094615.
%K nonn
%O 0,2
%A _Clark Kimberling_, May 14 2004
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