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 A001363 Primes in ternary. (Formerly M1961 N0776) 5
 2, 10, 12, 21, 102, 111, 122, 201, 212, 1002, 1011, 1101, 1112, 1121, 1202, 1222, 2012, 2021, 2111, 2122, 2201, 2221, 10002, 10022, 10121, 10202, 10211, 10222, 11001, 11012, 11201, 11212, 12002, 12011, 12112, 12121, 12211, 20001, 20012, 20102, 20122, 20201 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Primes written in base 3. REFERENCES Archimedeans Problems Drive, Eureka, 23 (1960), 23. N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS T. D. Noe, Table of n, a(n) for n = 1..847 FORMULA a(n) = A007089(A000040(n)). - Jonathan Vos Post, Sep 09 2006 MATHEMATICA Table[FromDigits[IntegerDigits[Prime[n], 3]], {n, 50}] (* T. D. Noe, Jun 28 2012 *) PROG (PARI) a(n)=subst(Pol(digits(prime(n), 3)), 'x, 10) \\ Charles R Greathouse IV, Nov 06 2013 CROSSREFS Analogs in other bases: A004676 (base 2), A001363 (base 3), A004678 (base 4), A004679 (base 5), A004680 (base 6), A004681 (base 7), A004682 (base 8), A004683 (base 9), A000040 (base 10), A004684 (base 11). Cf. A072805 = Primes of form 4k+3 written in base 3. Sequence in context: A061818 A166938 A093325 * A022367 A004686 A080139 Adjacent sequences:  A001360 A001361 A001362 * A001364 A001365 A001366 KEYWORD base,nonn,easy AUTHOR EXTENSIONS More terms from James A. Sellers, May 01 2000 STATUS approved

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Last modified December 12 17:59 EST 2019. Contains 329960 sequences. (Running on oeis4.)