OFFSET
1,1
COMMENTS
Next term is probably A092845(711), a 712-digit probable prime (Baillie-Pomerance-Selfridge-Wagstaff test, cf. PARI/GP documentation) beginning 2116599102453... and ending ...62648323979853562951413.
a(8) = A092845(711) is now a proven prime. - Sean A. Irvine, Jan 07 2018
REFERENCES
M. Gardner, Whys and Wherefores, Univ. Chicago Press, 1989, p. 84.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
EXAMPLE
51413 is in the list because it is prime and its decimal reversal, 31415, is the first 5 digits of Pi.
MATHEMATICA
Module[{nn=1000, rd}, d=RealDigits[Pi, 10, nn][[1]]; Select[Table[FromDigits[Reverse[Take[d, n]]], {n, nn}], PrimeQ]] (* Harvey P. Dale, Jul 11 2023 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
EXTENSIONS
Edited by M. F. Hasler and N. J. A. Sloane, Mar 30 2008
Edited by T. D. Noe, Oct 30 2008
STATUS
approved