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A079466
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Numbers n such that the "inventory" A063850 of n is a palindrome.
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1
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1, 22, 112, 121, 211, 333, 1113, 1131, 1311, 3111, 4444, 11114, 11141, 11411, 14111, 22233, 22323, 22332, 23223, 23232, 23322, 32223, 32232, 32322, 33222, 41111, 55555
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| The Inventory Sequences and Self-Inventoried Numbers in www.primepuzzles.net
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EXAMPLE
| The "inventory" of 112 is 2112 (two "1"s, one "2"), which is a palindrome. Hence 112 belongs to the sequence.
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MATHEMATICA
| g[n_] := Module[{seen, r, d, l, i, t}, seen = {}; r = {}; d = IntegerDigits[n]; l = Length[d]; For[i = 1, i <= l, i++, t = d[[i]]; If[ ! MemberQ[seen, t], r = Join[r, IntegerDigits[Count[d, t]]]; r = Join[r, {t}]; seen = Append[seen, t]]]; FromDigits[r]]; isPalin[n_] := (n == FromDigits[Reverse[IntegerDigits[n]]]); Select[Range[10^5], isPalin[g[ # ]] &]
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CROSSREFS
| Cf. A063850. Different from A079676.
Sequence in context: A083123 A084017 A089184 * A079676 A061596 A074277
Adjacent sequences: A079463 A079464 A079465 * A079467 A079468 A079469
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KEYWORD
| base,nonn
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AUTHOR
| Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Jan 14 2003
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