Tweet-sized Javascript Numerical Series IQ Test Solver

Examples:

• 1 2 3 4 5
• 1 2 5 14 41
• 30 62 126 254 510 1022
• 10 100 20 110 30 120

Try it!

Notes

• 137 bytes
• Half broken - expect weird results
• For fun / 'cos I can
• So geeky it doesn't need CSS
• Source:

  // USAGE:
  // S(serie, callback);
  // - serie: an array with the numerical serie.
  // - callback: a function (result) {...} where results will be sent.
  
  function S(o,l,v,e,r){for(e=[r=[V=o[i=0]]];q=o[i+1];r[i++]=q/V,V=q)e[i]=q-V;v=v?v+V:V;if((V!=1||l(eval(v)))&&i)S(e,l,v+"+"),S(r,l,v+"*")}

• By Román Cortés