OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
EXAMPLE
a(4)=7891011 because the 4th prime is 7 and the 5th is 11 and we concatenate those with the increasing numbers between.
MATHEMATICA
ccd[{a_, b_}]:=FromDigits[Flatten[IntegerDigits/@Range[a, b]]]; ccd/@ Partition[ Prime[ Range[30]], 2, 1] (* Harvey P. Dale, Jun 08 2015 *)
CROSSREFS
KEYWORD
easy,nonn,base
AUTHOR
Jason Earls, Aug 18 2005
STATUS
approved