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 A066622 Concatenation of prime numbers in increasing order up to the n-th and then in decreasing order. 3
 2, 232, 23532, 2357532, 2357117532, 23571113117532, 235711131713117532, 2357111317191713117532, 23571113171923191713117532, 235711131719232923191713117532, 2357111317192329312923191713117532 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..174 MATHEMATICA Table[FromDigits[Flatten[IntegerDigits/@Join[Prime[Range[n]], Reverse[Most[Prime[Range[n]]]]]]], {n, 12}] (* Harvey P. Dale, Oct 02 2022 *) CROSSREFS Sequence in context: A095220 A113800 A133495 * A261493 A012671 A012526 Adjacent sequences: A066619 A066620 A066621 * A066623 A066624 A066625 KEYWORD easy,nonn,base AUTHOR Amarnath Murthy, Dec 25 2001 EXTENSIONS More terms from Sascha Kurz, Mar 23 2002 STATUS approved

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Last modified December 11 11:25 EST 2023. Contains 367724 sequences. (Running on oeis4.)