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 A069868 Smallest n-th power whose digit reversal is a prime. 0
 2, 16, 125, 16, 32, 16777216, 128, 16777216, 35184372088832, 1024, 34271896307633, 16777216, 1490116119384765625, 182059119829942534144, 35184372088832, 3876269050118516845397872321, 131072, 14551915228366851806640625, 1134787999706880954999833295916475119, 3584859224085422343574104404449462890625 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..20. PROG (Python) from sympy import isprime def a(n): k = 1 while not isprime(int(str(k**n)[::-1])): k += 1 return k**n print([a(n) for n in range(1, 21)]) # Michael S. Branicky, Feb 16 2021 CROSSREFS Sequence in context: A301947 A027309 A241466 * A338186 A208073 A022027 Adjacent sequences: A069865 A069866 A069867 * A069869 A069870 A069871 KEYWORD nonn,base AUTHOR Amarnath Murthy, Apr 21 2002 EXTENSIONS More terms from Jason Earls, Jun 03 2002 STATUS approved

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Last modified June 4 21:13 EDT 2023. Contains 363130 sequences. (Running on oeis4.)