Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #5 Sep 23 2018 13:59:13
%S 0,1,1,10,10,19,19,37,28,37,37,37,37,46,73,55,55,64,73,73,64,82,73,
%T 109,100,118,91,109,109,118,127,127,109,136,145,127,145,136,145,163,
%U 145,154,172,190,127,181,199,208,217,190,181,235,235,253,226,217,226,235,262
%N Sum of digits of A002452(n).
%F a(n)=A007953(A002452(n)).
%p A002452 := proc(n) (9^n-1)/8 ; end: A007953 := proc(n) local i ; add(i,i=convert(n,base,10)) ; end: A141324 := proc(n) A007953(A002452(n)) ; end: for n from 0 to 80 do printf("%d,",A141324(n)) ; od: # _R. J. Mathar_, Aug 09 2008
%t Total[IntegerDigits[#]]&/@LinearRecurrence[{10,-9},{0,1},60] (* _Harvey P. Dale_, Sep 23 2018 *)
%Y Cf. A017173.
%K nonn,base
%O 0,4
%A _Paul Curtz_, Aug 03 2008
%E Extended by _R. J. Mathar_, Aug 09 2008