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Row sums of A339494.
1

%I #11 Dec 08 2020 02:31:37

%S 1,3,9,19,37,73,144,283,556,1093,2149,4225,8306,16329,32102,63111,

%T 124073,243921,479536,942743,1853384,3643657,7163241,14082561,

%U 27685586,54428429,107003474,210363291,413563341,813044121,1598402656,3142376883,6177750292,12145137293

%N Row sums of A339494.

%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (1,1,1,1,1).

%F a(n) = A339493(n) + Fibonacci(n + 2) for n >= 2.

%F a(n) = [x^n] -x*(x*(x + 1)*(x*(x*(x*(x*(x + 2) + 2) + 3) + 3) + 2) + 1)/(x^5 + x^4 + x^3 + x^2 + x - 1).

%Y Cf. A339494, A339493, A000045, A333650.

%K nonn

%O 1,2

%A _Peter Luschny_, Dec 07 2020