OFFSET
1,1
PROG
(Magma) [ p: p in PrimesUpTo(20000000) | IsOdd(d) and D[(d+1) div 2] eq 7 and D eq Reverse(D) where d is #D where D is Intseq(p) ]; // Vincenzo Librandi, Apr 12 2011
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Lekraj Beedassy, Apr 25 2003
EXTENSIONS
1327231, 1407041 inserted and more terms from Georg Fischer, Apr 20 2024
STATUS
approved