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%I #13 Jan 10 2021 02:46:40
%S 1,2,5,12,19,20,29,38,45,48,51,60,61,62,65,72,79,80,89,98,105,108,111,
%T 120,121,122,125,132,139,140,149,158,165,168,171,180,181,182,185,192,
%U 199,200,209,218,225,228,231,240,241,242,245,252,259,260,269,278,285
%N Partial sums of A131707.
%H <a href="/index/Rec#order_08">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1,0,0,0,-1,2,-1).
%F a(n) = Sum_{i=0..n} A131707(i), where A131707(n) = A001333(n) mod 10.
%F O.g.f.: (9x^6-6x^5+4x^3+2x^2+1)/((x-1)^2*(x^2+1)*(x^4-x^2+1)). - _R. J. Mathar_, Jul 16 2008
%F a(n) = 2*a(n-1) - a(n-2) - a(n-6) + 2*a(n-7) - a(n-8) for n > 7. - _Chai Wah Wu_, Jan 09 2021
%Y Cf. A001333, A131707, A131725.
%K nonn,easy
%O 0,2
%A _Paul Curtz_, Sep 24 2007
%E Edited by _R. J. Mathar_, Jul 16 2008
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