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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
OFFSET
1,1
LINKS
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
KEYWORD
easy,nonn,base
AUTHOR
Amarnath Murthy, Dec 25 2001
EXTENSIONS
More terms from Sascha Kurz, Mar 23 2002
STATUS
approved