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 A022499 Describe the previous term! (method B - initial term is 3). 10
 3, 31, 3111, 3113, 311231, 3112213111, 311222113113, 31122312311231, 3112223111213112213111, 31122331132111311222113113, 311222321231211331122312311231 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Method B = 'digit'-indication followed by 'frequency'. LINKS Seiichi Manyama, Table of n, a(n) for n = 1..23 EXAMPLE E.g. the term after 3113 is obtained by saying "3 once, 1 twice, 3 once", which gives 311231. MATHEMATICA a[1] = 3; a[n_] := a[n] = {#[[1]], Length[#]}& /@ Split[a[n-1] // IntegerDigits] // Flatten // FromDigits; Array[a, 11] (* Jean-François Alcover, Jul 13 2016, updated Jan 05 2018 *) CROSSREFS Cf. A007651, A022470, A022500-A022505. Cf. A006715. Sequence in context: A172645 A201604 A048562 * A129209 A134721 A002707 Adjacent sequences:  A022496 A022497 A022498 * A022500 A022501 A022502 KEYWORD nonn,base,easy,nice AUTHOR STATUS approved

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Last modified May 17 19:39 EDT 2021. Contains 343988 sequences. (Running on oeis4.)