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%I #17 Feb 12 2024 06:37:03
%S 1,47,1634,50302,1449507,40067565,1076318788,28314922364,733113789893,
%T 18744640404523,474436263754662,11908153358721786,296798270974985959,
%U 7353307338085529321,181245852206166776456,4447409619636426706168
%N a(1)=1, a(n) = n*23^(n-1) + a(n-1).
%H <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (47,-575,529).
%F G.f.: x/((1 - x)*(1 - 23*x)^2). - _Stefano Spezia_, Mar 11 2020
%o (PARI) a(n) = (1+23^n*(22*n-1))/484; \\ _Jinyuan Wang_, Mar 11 2020
%K nonn,easy
%O 1,2
%A _Olivier Gérard_
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