OFFSET
1,1
COMMENTS
Leading zeros count but are not printed (cf. A073186).
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..100
EXAMPLE
a(6)=1021 because first 6-digit string in 246810121416182022242628303234... that forms a prime is "001021".
MATHEMATICA
With[{c=Flatten[IntegerDigits/@(2Range[100])]}, Table[SelectFirst[ FromDigits/@ Partition[c, n, 1], PrimeQ], {n, 20}]] (* Harvey P. Dale, Jul 14 2019 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Zak Seidov, Aug 22 2002
EXTENSIONS
More terms from Sascha Kurz, Feb 02 2003
Name modified by Sean A. Irvine, Jan 31 2025
STATUS
approved