OFFSET
1,1
COMMENTS
The most logical way of generating the Left-truncatable primes generates them in this order. Last term is a(4260)=357686312646216567629137.
LINKS
H. J. Smith, Table of n, a(n) for n = 1..4260 (full sequence)
I. O. Angell and H. J. Godwin, On Truncatable Primes, Math. Comput. 31, 265-267, 1977.
PROG
(PARI) {fileO="b132394.txt"; v=vector(4260); v[1]=2; v[2]=3; v[3]=5; v[4]=7; i=0; j=4; write(fileO, "1 2"); write(fileO, "2 3"); write(fileO, "3 5"); write(fileO, "4 7"); until(i>=j, i++; p=v[i]; P10=10^(1+log(p)\log(10)); for(k=1, 9, z=k*P10+p; if(isprime(z), j++; v[j]=z; write(fileO, j, " ", z); ))); } \\ Harry J. Smith, Sep 18 2008
CROSSREFS
KEYWORD
base,fini,full,nonn
AUTHOR
Harry J. Smith, Nov 11 2007
EXTENSIONS
Edited by Jason G. Wurtzel, Oct 06 2010
STATUS
approved