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 #10 Feb 15 2019 10:04:34
%S 0,0,0,0,0,0,0,0,0,0,99,0,0,0,0,0,0,0,0,0,198,99,0,0,0,0,0,0,0,0,297,
%T 198,99,0,0,0,0,0,0,0,396,297,198,99,0,0,0,0,0,0,495,396,297,198,99,0,
%U 0,0,0,0,594,495,396,297,198,99,0,0,0,0,693,594,495,396,297,198,99,0,0
%N Differences between A045918 and A047842.
%H G. C. Greubel, <a href="/A097601/b097601.txt">Table of n, a(n) for n = 0..10000</a>
%t LookAndSayA[n_]:= FromDigits@Flatten@IntegerDigits@Flatten[Through[ {Length, First}[#]] & /@ Split@IntegerDigits@n]; dc[n_]:= FromDigits@ Flatten@Select[Table[{DigitCount[n, 10, k], k}, {k, 0, 9}], #[[1]] > 0 &]; Table[LookAndSayA[n] - dc[n], {n, 0, 100}]
%Y Cf. A045918, A047842.
%K easy,sign,base
%O 0,11
%A _Odimar Fabeny_, Aug 29 2004
%E Terms a(31) onward added by _G. C. Greubel_, Jan 14 2019