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Summarize and say sequence: Difference between revisions
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19182716152413228110</pre>
=={{header|Javascript}}==
<lang javascript>
function selfReferential(n) {
n = n.toString();
let res = [n];
const makeNext = (n) => {
let matchs = {
'9':0,'8':0,'7':0,'6':0,'5':0,'4':0,'3':0,'2':0,'1':0,'0':0}, res = [];
for(let index=0;index<n.length;index++)
matchs[n[index].toString()]++;
for(let index=9;index>=0;index--)
if(matchs[index]>0)
res.push(matchs[index],index);
return res.join("").toString();
}
for(let i=0;i<10;i++)
res.push(makeNext(res[res.length-1]));
return [...new Set(res)];
}
</lang>
=={{header|jq}}==
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